Stepless radius adjusting device for rotor power system test bed

Abstract

The utility model discloses a rotor wing power system test bed radius stepless adjusting device, and solves the technical problems that an existing test bed radius adjusting assembly is complex in adjustment, large in error and low in adjusting efficiency. The device comprises a platform, a radius adjusting assembly and an adjusting stand column, the radius adjusting assembly comprises an adjusting rotary disc and movable connecting rods, and the adjusting rotary disc is rotationally connected with at least two movable connecting rods; the adjusting stand columns comprise at least two stand columns, the lower ends of the stand columns are connected with lower fixing connecting rods, the ends of the lower fixing connecting rods are rotationally connected to the platform, the lower ends of the stand columns are further rotationally connected with the movable connecting rods, and the adjusting rotary disc is arranged on the platform and rotationally connected with the platform. The device has the advantages of being high in adjustment efficiency, accurate in adjustment 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 stepless adjusting device. BACKGROUND

[0002] The test bench is the infrastructure in the laboratory for supporting and operating experiments, 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, which 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. In order to test the performance of the power rotor system of different sizes and meet the wide adaptability of the power rotor system, an adjusting mechanism is needed to load rotor systems of different sizes.

[0003] Although the radius adjusting structure has been applied to the rotor performance test bench in the prior art, such as the patent with publication number CN105083588 A, a multi-rotor unmanned aerial vehicle performance test platform and method, which discloses that 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 slider at the end of the stand column slides in the slide rail, thereby adjusting the radius formed by the stand column, so that the test platform can be used to test multi-rotor unmanned aerial vehicles of different sizes.

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

[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 simple structure, which can simultaneously adjust multiple stand columns and accurately adjust the radius. UTILITY MODEL CONTENT

[0006] The utility model wants to solve the technical problem that the current test table radius adjusting assembly is complex and has big error, and the technical problem of low adjustment efficiency.

[0007] The utility model discloses the following technical scheme realizes:

[0008] A rotor power system test table radius stepless adjusting device, include:

[0009] Platform;

[0010] Radius adjusting assembly;

[0011] Adjusting stand;

[0012] The radius adjusting assembly includes adjusting turntable and movable connecting rod, and at least two movable connecting rods are rotationally connected to the adjusting turntable;

[0013] The adjusting stand includes at least two stands, the lower end of the stand is connected with a lower fixed connecting rod, the end of the lower fixed connecting rod is rotationally connected to the platform, and the lower end of the stand is also rotationally connected with the movable connecting rod, and the adjusting turntable is arranged on the platform and rotationally connected with the platform.

[0014] The utility model discloses the setting radius adjusting assembly can drive multiple stands to be folded or unfolded simultaneously through multiple movable connecting rods, reduces the adjustment frequency, improves the adjustment efficiency, realizes the accurate and fast matching of different size power rotor system, and the utility model discloses the setting adjusting stand realizes linkage adjustment in cooperation with the radius adjusting assembly, and it is fast and convenient;

[0015] Radius adjusting principle: rotating the adjusting turntable, the rotation of the adjusting turntable will pull the movable connecting rod, since the two ends of the movable connecting rod are rotationally connected with the lower end of the stand and the upper end of the adjusting turntable, the movable connecting rod will better pull the stand to move, and since the lower end of the stand is also fixedly connected with the lower fixed connecting rod, the end of the lower fixed connecting rod is rotationally connected with the platform, thus the lower fixed connecting rod will limit the stand to move on the circular arc with the lower fixed connecting rod and the platform rotationally connected as the center and the length of the lower fixed connecting rod as the radius, thereby realizing the folding and unfolding of multiple stands simultaneously.

[0016] In the utility model, it needs to be explained that the lower fixed connecting rod and the platform, and the movable connecting rod and the adjusting turntable are rotationally connected through the pin shaft, and the movable connecting rod is sleeved on the outer wall of the stand to realize the rotation connection.

[0017] Further, the platform is provided with the slide rail consistent with the number of the stands, and the lower end of the stand is slidingly connected with the slide rail.

[0018] Need to explain after adopting technical solution, in the test process of power rotor system, because power rotor system will be fixedly installed on the stand, the stand will bear the overall weight of power rotor system, therefore, the slide rail is arranged on the platform to support the stand, in addition, the sliding connection of the stand and the slide rail is further limited to the sliding track of the stand by the rotating connection of the lower fixed connecting rod and the platform and the sliding connection of the stand and the slide rail, so that the stand remains stable during sliding, finally, it needs to be explained that the sliding connection mode of the stand and the slide rail of the application can be any one of the sliding block and groove structure, slide rail structure and ball structure.

[0019] The utility model discloses a kind of rotor power system test bench radius stepless adjusting device, the lower end of the stand is further equipped with ball, slide groove is equipped on the slide rail, the slide groove is as follows Fixed connecting rod and platform rotating connection place is center, lower fixed connecting rod length is the arc of radius, the ball and the slide groove sliding cooperation.

[0020] After adopting the technical scheme, it needs to be explained that the moving track of the stand is limited by the connection mode of the lower fixed connecting rod, i.e. under the condition that the lower end of the fixed connecting rod is rotatably connected with the platform, the movable connecting rod pulls the stand to move, the stand will slide on the arc with the lower fixed connecting rod length as radius and the lower fixed connecting rod and platform rotating connection place as origin, therefore, the arc-shaped slide groove is set to match the movement track of the stand, and the stand is positioned.

[0021] Secondly, it needs to be explained that the movement track of the stand is arc-shaped, i.e. the arc-shaped is a segment of the circular track formed by the rotation of the lower fixed connecting rod and platform rotating connection place as center, therefore, the cooperation of the slide groove and the ball can make the rolling and sliding friction of the ball in the slide groove lower, and realize higher-precision stand adjustment, improve the accuracy of subsequent measurement of power rotor system.

[0022] Further, the platform is provided with an annular groove, and the adjusting turntable is rotatably connected with the annular groove.

[0023] After adopting the technical scheme, it needs to be explained that, in order to limit the position of the adjusting turntable and keep the rotation stability of the adjusting turntable, the annular groove is arranged on the platform, the adjusting turntable is arranged on the inner side of the annular groove and rotatably connected therewith, and in the utility model, the annular groove is arranged at the central position of the platform.

[0024] The utility model discloses a kind of rotor power system test bench radius stepless adjusting device, the inner recess is equipped on the platform, the annular groove is equipped in the inner recess, the slide rail is arranged between the annular groove and the inner recess side wall.

[0025] By adopting the technical scheme, it is to be explained that, in order to reduce the weight of the device under the premise of guaranteeing the bearing capacity of the platform, the inner recess is arranged on the platform, the annular groove, the adjusting turntable and the slide rail are all arranged in the recess, and reasonable space utilization is realized.

[0026] The utility model discloses a kind of rotor power system test bench radius stepless adjusting device, the lower fixed link with the movable link is mutually parallel.

[0027] By adopting the technical scheme, it is to be explained that, in the utility model, in order to keep the lower fixed link and movable link efficient in the process of driving column movement, avoid friction due to movable link and lower fixed link inclination, therefore lower fixed link and movable link are mutually parallel, to guarantee movable link and lower fixed link are in perpendicular state with stand column.

[0028] Further, the adjusting turntable is provided with a lever, and the inner recess side wall is provided with an adjusting hole.

[0029] By adopting the technical scheme, it is to be explained that, the height of the adjusting turntable is less than the depth of the inner recess, so the lever can pass through the adjusting hole of the inner recess side wall, and the rotation angle of the adjusting turntable is limited through the adjusting hole; in the utility model, since the height of the adjusting turntable is less than the depth of the inner recess, and one end of the movable link is rotatably connected to the upper end of the adjusting turntable, therefore the movable link is below the lower fixed link at the lower end of the stand column.

[0030] Further, the platform outer side is provided with a positioning member, the positioning member is located above the adjusting hole, the positioning member is provided with a plurality of screw holes, the lever is correspondingly provided with the screw holes, and the screw holes are connected with bolts.

[0031] By adopting the technical scheme, it is to be explained that, in order to fix and limit the adjusting turntable after the adjusting turntable is rotated to the appropriate position, the lever is slid, the screw hole on the lever coincides with any screw hole on the positioning member, the bolt is inserted and tightened, and the rotation of the adjusting turntable is limited; in addition, it is to be explained that the positioning member is located at the outer edge of the platform, and it extends outward, and the width is wider than the outer edge of the platform, so as to strengthen the connection strength and bearing capacity of the bolt, and the screw holes are uniformly arranged on the positioning member.

[0032] The utility model discloses a kind of rotor power system test bench radius stepless adjusting device, the upper end of the stand column is provided with upper fixed link, the upper fixed link with the lower fixed link is corresponding, the upper fixed link end is rotatably connected with fixed ring, and the fixed ring is located the lower end of the upper fixed link.

[0033] The utility model discloses a kind of rotor power system test bench radius stepless adjusting devices, three movable connecting rods are rotationally connected with equal interval on the adjusting turntable, and the end of each movable connecting rod is rotationally connected with the stand.

[0034] The utility model discloses a kind of rotor power system test bench radius stepless adjusting devices, three movable connecting rods are rotationally connected with equal interval on the adjusting turntable, and the end of each movable connecting rod is rotationally connected with the stand.

[0035] The utility model discloses a kind of rotor power system test bench radius stepless adjusting devices, three movable connecting rods are rotationally connected with equal interval on the adjusting turntable, and the end of each movable connecting rod is rotationally connected with the stand.

[0036] Further, the stand is slidably connected with a clamping jaw on each, and the clamping jaw clamps the shell of the power rotor system.

[0037] The utility model discloses a kind of rotor power system test bench radius stepless adjusting devices, two support rods are connected between the platform and the fixed ring, and the two support rods are symmetrically arranged.

[0038] The utility model discloses a kind of rotor power system test bench radius stepless adjusting devices, two support rods are connected between the platform and the fixed ring, and the two support rods are symmetrically arranged.

[0039] The utility model discloses a kind of rotor power system test bench radius stepless adjusting devices, hollow is equipped on the platform.

[0040] The utility model discloses a kind of rotor power system test bench radius stepless adjusting devices, two support rods are connected between the platform and the fixed ring, and the two support rods are symmetrically arranged.

[0041] The working principle of the utility model is:

[0042] The relationship between each column and the rotating direction of the rotating adjustment turntable is as follows: in the utility model, when the lever rotates clockwise by default, each column will be folded inward, therefore, the bending direction of the track is toward the clockwise rotating direction of the lever to match the sliding track of the column;

[0043] The maximum radius state: when the lever is at the rightmost end of the adjustment hole, the diameter of the circle formed by each column is the largest, that is, each column is at the outermost side, at this time, the device is in the maximum radius state, and the shell part of the power rotor system with a larger diameter can be stably clamped through the clamping jaw;

[0044] The radius adjustment process: according to the size of the power rotor system to be tested, the position of the column can be adjusted to adapt to power rotor systems of different sizes, when each column is at the maximum radius position, the lever is rotated clockwise to drive the adjustment turntable to rotate in the same direction, the clockwise rotation of the adjustment turntable drives the movable connecting rod to move clockwise, thereby pulling the column in the clockwise direction, since one end of the lower fixed connecting rod is rotatably connected to the platform, the column will pull the lower fixed connecting rod in the clockwise rotating direction of the lever, and under the action of the lower fixed connecting rod, the column will slide along the circular arc track with the lower fixed connecting rod length as the radius and the rotating connection point of the platform as the center, that is, the ball at the lower end of the column will slide in the sliding groove, under the above linkage cooperation, as the lever is continuously rotated clockwise, each column is closer to the center of the platform, that is, the diameter of the circle formed by each column gradually decreases, until the lever is rotated to the leftmost end of the adjustment hole to reach the minimum diameter state, to adapt to power rotor systems of different sizes;

[0045] The stability of the column: during the continuous adjustment of the column, the upper end of the column is stably positioned by the fixed ring to prevent the upper end of the column from shaking during the adjustment process, which affects the stability of the device, the symmetrically arranged supporting rods prevent the fixed ring from swinging due to the pulling of the upper fixed connecting rod, which affects the performance test of the rotor system, therefore, the supporting rods keep the fixed ring stable.

[0046] The utility model has the advantages and beneficial effects that:

[0047] 1、The utility model discloses a radius adjustment assembly is set up, a plurality of movable connecting rods drive a plurality of columns to fold or unfold simultaneously, reduce the adjustment times, improve the adjustment efficiency, realize the accurate and fast matching of different size power rotor systems, cooperate with the radius adjustment device to realize the linkage adjustment, which is fast and convenient.

[0048] 2、The utility model discloses a slide rail is set up, the rotating connection of the lower fixed connecting rod and the platform cooperates with the sliding connection of the column and the slide rail to further limit the sliding track of the column, so that the column remains stable during the sliding process.

[0049] 3、The utility model discloses a fixed ring is set up, keeps the stability of the whole stand in the adjustment process, and provides stable test installation environment for the performance test of subsequent power rotor system.

[0050] 4、The utility model discloses the hollow of platform, hollow reduces the weight of platform on one hand, on the other hand, when the performance test of rotor system is being carried out, reduces the wind area of the downwash airflow that platform and rotor produce, and reduces the additional pressure that downwash airflow brings. BRIEF DESCRIPTION OF DRAWINGS

[0051] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present application and are incorporated in and constitute a part of this application, illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application. In the drawings:

[0052] Figure 1 It is the whole structure schematic diagram of the utility model;

[0053] Figure 2 It is the whole structure overhead view of the utility model;

[0054] Figure 3 It is the adjustment stand structure schematic diagram of the utility model;

[0055] Figure 4 It is the fixed ring structure schematic diagram of the utility model.

[0056] The component names in the drawings are as follows:

[0057] 1-platform;2-radius adjustment assembly, 201-adjustment turntable, 202-movable connecting rod;3-adjustment stand, 301-stand, 302-upper fixed connecting rod, 303-lower fixed connecting rod, 304-rolling ball;4-slideway;5-ring groove;6-fixed ring;7-positioner;8-clamping jaw;9-supporting rod. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the utility model is further explained in detail below by combining with the embodiment and drawing, and the illustrative embodiment of the utility model and its explanation are only used to explain the utility model, and do not limit the utility model. Embodiment 1

[0059] As Figures 1-4 Shown, a kind of rotor power system test rig radius stepless adjustment device, comprising: platform 1

[0060] Radius adjustment assembly 2;

[0061] Adjustment stand 3;

[0062] The radius adjusting assembly 2 comprises an adjusting turntable 201 and at least two movable connecting rods 202, and the adjusting turntable 201 is rotationally connected with the movable connecting rods 202.

[0063] The adjusting column 3 comprises at least two columns 301, the lower end of the column 301 is connected with a lower fixed connecting rod 303, the end of the lower fixed connecting rod 303 is rotationally connected with the platform 1, and the lower end of the column 301 is movably connected with the movable connecting rod 202.

[0064] The platform 1 is provided with a number of slide rails 4 corresponding to the number of the columns 301, and the lower end of the column 301 is slidably connected with the slide rail 4.

[0065] The lower end of the column 301 is further provided with a ball 304, and the slide rail 4 is provided with a sliding groove, the sliding groove is in the shape of a circular arc with the rotationally connected position of the lower fixed connecting rod 303 and the platform 1 as the center and the length of the lower fixed connecting rod 303 as the radius, and the ball 304 is slidably connected with the sliding groove.

[0066] The platform 1 is provided with an annular groove 5, and the adjusting turntable 201 is rotationally connected with the annular groove 5.

[0067] The platform 1 is provided with an inner recess, the annular groove 5 is arranged in the inner recess, and the slide rail 4 is arranged between the annular groove 5 and the side wall of the inner recess.

[0068] The lower fixed connecting rod 303 and the movable connecting rod 202 are parallel to each other.

[0069] Each column 301 is slidably connected with a clamping jaw 8, and the clamping jaw 8 clamps the shell of the power rotor system. Embodiment 2

[0070] The difference between the utility model and embodiment 1 lies in that the adjusting turntable 201 is provided with a lever, the inner recess side wall is provided with an adjusting hole, and the lever passes through the adjusting hole and extends outward.

[0071] The platform 1 is provided with a positioning member above the adjusting hole, the positioning member is provided with a plurality of screw holes, the lever is correspondingly provided with the screw holes, and the screw holes are connected with bolts.

[0072] By sliding the lever, the screw holes on the lever coincide with any screw hole on the positioning member, the bolts are inserted and tightened to limit the rotation of the adjusting turntable 201.

[0073] The rest of the structures of the embodiment are the same as those of embodiment 1, and will not be repeated here. Embodiment 3

[0074] The difference between the embodiment and embodiment 2 lies in that the upper end of the stand column 301 is provided with an upper fixed connecting rod 302, the upper fixed connecting rod 302 corresponds to the lower fixed connecting rod 303, the end of the upper fixed connecting rod 302 is rotationally connected with a fixed ring 6, the fixed ring 6 is located at the lower end of the upper fixed connecting rod 302, the upper end of the stand column 301 is limited by the fixed ring 6 arranged thereon, the stability of the stand column 301 as a whole is maintained in the adjustment process, and a stable test installation environment is provided for performance test of the subsequent power rotor system.

[0075] The rest of the structures of the embodiment are consistent with those of embodiment 1, and will not be described here again. Embodiment 4

[0076] The difference between the embodiment and embodiment 3 lies in that the adjusting turntable 201 is rotationally connected with three movable connecting rods 202 at equal intervals, the end of each movable connecting rod 202 is rotationally connected with the stand column 301, three-point clamping of the power rotor system is realized, and the clamping is more stable under the condition of ensuring the weight of the overall device.

[0077] The rest of the structures of the embodiment are consistent with those of embodiment 1, and will not be described here again. Embodiment 5

[0078] The difference between the embodiment and embodiment 4 lies in that two supporting rods 9 are connected between the platform 1 and the fixed ring 6, the two supporting rods 9 are symmetrically arranged, the fixed ring 6 is supported and kept stable, the fixed ring 6 is prevented from swinging due to pulling of the upper fixed connecting rod 302, and the performance test of the rotor system is affected.

[0079] The rest of the structures of the embodiment are consistent with those of embodiment 1, and will not be described here again. Embodiment 6

[0080] The difference between the embodiment and embodiment 5 lies in that the platform 1 is provided with a hollow, on the one hand, the weight of the platform 1 is reduced, and on the other hand, when the performance test of the rotor system is carried out, the wind collision area of the downwash airflow generated by the platform 1 and the rotor is reduced, and the additional pressure brought by the downwash airflow is reduced.

[0081] The rest of the structures of the embodiment are consistent with those of embodiment 1, and will not be described here again.

[0082] Working principle of the utility model:

[0083] Relationship between each stand column 301 and the rotation direction of the rotating adjusting turntable 201: in the utility model, when the lever is rotated clockwise by default, each stand column 301 will be inwardly folded, therefore, the bending direction of the track is towards the clockwise rotation direction of the lever to match the sliding track of the stand column 301;

[0084] Maximum radius state: the diameter of the circle formed by the various columns 301 is maximum when the dial lever is at the rightmost end of the adjustment hole, that is, when the various columns 301 are at the outermost side, at this time the device is in the maximum radius state, and the larger diameter of the power system shell part can be stably clamped by the clamping jaw 8;

[0085] Radius adjustment process: according to the size of the power rotor system to be tested, the position of the column 301 can be adjusted to adapt to different sizes of power rotor systems. When the various columns 301 are in the maximum radius position, the dial lever is rotated clockwise to drive the adjustment turntable 201 to rotate in the same direction. The clockwise rotation of the adjustment turntable 201 will drive the movable connecting rod 202 to move clockwise, thereby pulling the column 301 in the clockwise direction. Since one end of the lower fixed connecting rod 303 is rotationally connected to the platform 1, the column 301 will pull the lower fixed connecting rod 303 in the clockwise rotation direction of the dial lever, and under the action of the lower fixed connecting rod 303, the column 301 will slide along the circular arc trajectory with the lower fixed connecting rod 303 as the center and the length of the lower fixed connecting rod 303 as the radius, that is, the ball 304 at the lower end of the column 301 will slide in the sliding groove. Under the above linkage cooperation, as the dial lever is continuously rotated clockwise, the various columns 301 are closer to the center of the platform 1, that is, the diameter of the circle formed by the various columns 301 gradually decreases, until the dial lever is rotated to the leftmost end of the adjustment hole to the minimum diameter state, to adapt to different sizes of power rotor systems.

[0086] Stabilization of the column 301: during the continuous adjustment of the column 301, the upper end of the column 301 is stably positioned by the fixed ring 6 to prevent the upper end of the column 301 from shaking during the adjustment process, affecting the stability of the device. The symmetrically arranged support rods 9 prevent the fixed ring 6 from being pulled by the upper fixed connecting rod 302 to swing and affect the performance testing of the rotor system, so the support rods are arranged to keep the fixed ring 6 stable.

[0087] The above specific embodiments further illustrate the purpose, technical solutions and beneficial effects of the present application. It should be understood that the above description is only a specific embodiment of the present application and is not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A device for stepless adjustment of the radius of a test bench for a rotor power system, comprising a platform (1), characterized in that The utility model relates to a radius adjusting assembly (2), adjusting column (3), the radius adjusting assembly (2) includes adjusting turntable (201) and movable connecting rod (202), at least two movable connecting rods (202) are rotatably connected on adjusting turntable (201), The adjusting column (3) includes at least two columns (301), the lower end of the column (301) is connected with the lower fixed connecting rod (303), the end of the lower fixed connecting rod (303) is rotatably connected on the platform (1), the lower end of the column (301) is also rotatably connected with the movable connecting rod (202), the adjusting turntable (201) is arranged on the platform (1) and is rotatably connected with the platform (1). The platform (1) is provided with a sliding rail (4) consistent with the number of the column (301), and the lower end of the column (301) is slidably connected with the sliding rail (4). The lower end of the column (301) is also provided with a ball (304), and the sliding rail (4) is provided with a sliding groove, the sliding groove is arc-shaped, the arc-shaped is a segment of a circumferential trajectory formed by rotating the fixed connecting rod (303) below the fixed connecting rod (303) and the rotating connection of the platform (1), and the ball (304) is slidably connected with the sliding groove. The platform (1) is provided with an annular groove (5), and the adjusting turntable (201) is rotatably connected with the annular groove (5).

2. The radius infinitely variable adjustment device for a rotor power system test bench according to claim 1, characterized in that, The platform (1) is provided with an inner recess, the annular groove (5) is arranged in the inner recess, and the sliding rail (4) is arranged between the annular groove (5) and the side wall of the inner recess.

3. The radius infinitely variable adjustment device for a rotor power system test bench according to claim 2, characterized in that, A lever is arranged on the adjusting turntable (201), an adjusting hole is formed through the side wall of the inner recess, the lever passes through the adjusting hole and extends outward.

4. A radius infinitely variable adjustment device for a rotor power system test bed according to claim 2 or 3, characterized in that A positioning member is arranged on the outer side of the platform (1), the positioning member is located above the adjusting hole, a plurality of screw holes are arranged on the positioning member, corresponding screw holes are arranged on the lever, and bolts can be connected in the screw holes.

5. The radius infinitely variable device for a rotor power system test bench according to claim 4, characterized in that, An upper fixed connecting rod (302) is arranged at the upper end of the column (301), the upper fixed connecting rod (302) corresponds to the lower fixed connecting rod (303), a fixed ring (6) is rotatably connected at the end of the upper fixed connecting rod (302), and the fixed ring (6) is located at the lower end of the upper fixed connecting rod (302).

6. The radius infinitely variable device for a rotor power system test bench according to claim 5, characterized in that, Three movable connecting rods (202) are rotatably connected at equal intervals on the adjusting turntable (201), and the end of each movable connecting rod (202) is rotatably connected with the column (301).

7. The radius infinitely variable device for a rotor power system test bench according to claim 6, characterized in that, Two supporting rods (9) are connected between the platform (1) and the fixed ring (6), and the two supporting rods (9) are symmetrically arranged.

8. A radius infinitely variable adjustment device for a rotor power system test bed according to any one of claims 1-3, 5-7, characterized in that, ​ 9. A radius infinitely variable transmission for a rotor power system test bed according to any one of claims 1-3, 5-7, wherein, ​ 10. The radius infinitely variable device for a rotor power system test bed according to claim 8, wherein ​

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