Power testing device

Abstract

The utility model provides a dynamic testing device. The dynamic testing device comprises a base; one end of the support arm assembly is connected with the base through a connecting assembly; the test assembly is connected with the other end of the support arm assembly, and the test assembly is used for installing a to-be-tested power system; wherein the connecting assembly is movably arranged relative to the base along a first direction, so that the support arm assembly can drive the to-be-tested power system to move to a first test position along the first direction, and the connecting assembly is adjusted to be rotatably arranged relative to the base along a second direction; therefore, the support arm assembly can drive the to-be-tested power system to rotate to a second test position along the second direction. The technical problem that the testing device cannot flexibly adjust the distance and the axial angle between different propellers is solved.

Description

Technical Field

[0001] This utility model relates to the field of aircraft power testing technology, and in particular to a power testing device. Background Technology

[0002] The power system of an unmanned aerial vehicle (UAV) plays a crucial role in its operation. During the production and processing of UAVs, the power system needs to be tested. The power system generally consists of an electric motor and a propeller.

[0003] Existing testing equipment designs specialized tooling and fixtures for specific aircraft models to accommodate different propeller pitches and axial angles. While this customized testing method can meet the testing needs of specific aircraft models, it is costly and requires tooling to be changed or adjusted when dealing with different aircraft models. This is not only time-consuming but may also limit the scope of use of the equipment and make it difficult to quickly adapt to various testing scenarios.

[0004] There is currently no effective solution to the technical problem that the testing devices in the existing technology cannot flexibly adjust the distance and axial angle between different propellers. Utility Model Content

[0005] This invention provides a power testing device, which aims to improve the technical problem that existing testing devices cannot flexibly adjust the distance and axial angle between different propellers.

[0006] To achieve the above objectives, according to one aspect of the present invention, a power testing device is provided, comprising: a base; a support arm assembly, one end of which is connected to the base via a connecting assembly; and a testing assembly connected to the other end of the support arm assembly, the testing assembly being used to mount a power system under test; wherein the connecting assembly is movably disposed relative to the base along a first direction, so that the support arm assembly can drive the power system under test to move along the first direction to a first testing position, and the connecting assembly is rotatably disposed relative to the base along a second direction, so that the support arm assembly can drive the power system under test to rotate along the second direction to a second testing position.

[0007] In the technical solution of this application, one end of the support arm assembly is connected to the base via a connecting component, and the other end of the support arm assembly is connected to the test component. The power system under test is connected to the test component. By adjusting the position and angle of the connecting component relative to the base, the position and angle of the support arm assembly can be adjusted, thereby adjusting the position and angle of the test component. Compared with the adjustment method of the test device in the prior art, the power test device in this application does not require setting a special tooling or fixture at the test component end to adjust the position and angle of the power system under test by frequently changing the tooling or fixture. That is, the power test device in this application can flexibly adjust the position and angle of the propeller in the power system under test relative to the base, thereby improving the versatility of the power test device to adapt to various test scenarios.

[0008] Furthermore, the outrigger assembly includes multiple outriggers, one of which is connected to the connecting component, and the remaining outriggers are connected sequentially along a third direction. The outrigger furthest from the connecting component is connected to the test component. The outrigger furthest from the connecting component is rotatably configured relative to at least one of the remaining outriggers, so that the outrigger furthest from the connecting component drives the power system under test to move to the third test position.

[0009] In the above embodiments, the support arm assembly rotates relative to the base as a whole, and the support arm furthest from the connecting assembly can rotate relative to at least one of the other support arms. With this configuration, the rotation angle of the propeller relative to the base can be adjusted by operating the connecting assembly or the support arm assembly, so that the angle adjustment is more flexible.

[0010] Furthermore, the rotation axis of the outrigger is set perpendicular to the rotation axis of the connecting assembly.

[0011] In the above embodiments, the arm furthest from the connecting component can rotate independently in two mutually perpendicular planes, so that the propeller can exhibit a variety of flight attitudes to meet the testing needs of more test scenarios.

[0012] Furthermore, the support arm assembly includes a first support arm and a second support arm. One end of the first support arm is connected to the base via a connecting assembly, and the other end of the first support arm is hinged to the second support arm. The end of the second support arm furthest from the first support arm is connected to the test assembly.

[0013] In the above embodiments, the support arm assembly includes two support arms, which simplifies the structure of the support arm assembly and reduces testing costs while satisfying the need for support arm angle adjustment.

[0014] Furthermore, the connecting assembly includes: a support arm base, which is slidably connected to the base; and a rotating base, one end of which is connected to the first support arm, and the other end of which is connected to the support arm base via a locking member, the locking member having a locking position for locking the rotating base relative to the support arm base, and an unlocking position for allowing the rotating base to rotate relative to the support arm base.

[0015] In the above embodiments, the structural design that allows the outrigger base and the rotating base to rotate relative to each other simplifies the angle adjustment process of the outrigger assembly. The operator only needs to drive the rotating base to rotate relative to the outrigger base to realize the horizontal movement and angle adjustment of the outrigger assembly without complicated operating procedures or the use of special tools.

[0016] Furthermore, the outrigger is connected to the base via a sliding assembly, which includes a slider and a lead screw. The lead screw is rotatably mounted on the base, and the slider is threadedly connected to the lead screw, driving the lead screw to rotate so as to move the outrigger along the length of the lead screw.

[0017] In the above embodiments, the support arm seat is moved relative to the base by rotating the lead screw, which enables fine adjustment of the position of the support arm seat and thus fine adjustment of the propeller spacing, thus helping to improve the testing accuracy.

[0018] Furthermore, the outrigger assembly also includes a push rod mechanism, which includes a fixed rod and a drive rod. The drive rod is slidably connected to the fixed rod, the fixed rod is rotatably connected to the first outrigger, and the drive rod is rotatably connected to the second outrigger. When the second outrigger rotates relative to the first outrigger, the drive rod can move relative to the fixed rod to support the second outrigger.

[0019] In the above embodiments, the push rod mechanism is supported between the first arm and the second arm, providing a supporting force to keep the first arm at a preset angle, preventing the first arm from rotating relative to the second arm after the angle adjustment is completed, thereby ensuring the test accuracy.

[0020] Furthermore, the first arm is provided with a plurality of first through holes, which are spaced apart along the length direction of the first arm; and the second arm is provided with a plurality of second through holes, which are spaced apart along the length direction of the second arm.

[0021] In the above embodiments, the distribution and direction of airflow will change under different test conditions (such as horizontal and vertical states). By setting ventilation holes on each arm to optimize the airflow path, the influence of the arms on the propeller's airflow is reduced, so as to ensure that the measurement of parameters such as force and torque during the test is more accurate and to reduce test errors caused by airflow interference.

[0022] Furthermore, the first arm is provided with a plurality of first reinforcing ribs, which are spaced apart along the length of the first arm, and the first through hole is located between two adjacent first reinforcing ribs; and / or, the second arm is provided with a plurality of second reinforcing ribs, which are spaced apart along the length of the second arm, and the second through hole is located between two adjacent second reinforcing ribs.

[0023] In the above embodiments, the first reinforcing rib and / or the second reinforcing rib are provided to improve the rigidity of the outrigger assembly.

[0024] Furthermore, the base is supported on the ground by multiple legs, which are rotatably connected to the base. The legs have support positions that extend outward away from the base, as well as storage positions that are stored inside the base.

[0025] In the above embodiments, the provision of support legs can increase the contact area between the base and the ground, thereby improving the stability of the power testing device.

[0026] Furthermore, the test assembly includes: a force sensor connected to the end of the support arm assembly away from the base; a mounting base connected to the end of the force sensor away from the support arm assembly, the mounting base having a receiving cavity; and an encoder disposed within the receiving cavity, the encoder's adapter shaft extending from the opening end of the receiving cavity.

[0027] In the above embodiments, the mounting base is used to install the encoder and the power system under test. Placing the encoder in the receiving cavity of the mounting base can shorten the overall size of the test component and make the structure of the power test device more compact.

[0028] Furthermore, there are multiple outrigger assemblies, and the distance between the multiple outrigger assemblies can be adjusted.

[0029] In the above embodiments, the power testing device is equipped with multiple sets of support arm assemblies to meet the testing requirements of multiple power systems under test being tested simultaneously, thereby meeting the testing requirements of various types of aircraft. Attached Figure Description

[0030] Figure 1 This is a perspective view of the power testing device in this utility model;

[0031] Figure 2 yes Figure 1 Left view of the power testing device;

[0032] Figure 3 yes Figure 1 A cross-sectional view of the connecting component in the middle;

[0033] Figure 4 yes Figure 1 A 3D view of the central base;

[0034] Figure 5 yes Figure 1 Left view of the central base;

[0035] Figure 6 yes Figure 1 A magnified view of the test components;

[0036] Figure 7 yes Figure 1 A schematic diagram of the power testing device in the first test state;

[0037] Figure 8 yes Figure 1 A schematic diagram of the power testing device in the second test state;

[0038] Figure 9 yes Figure 1 A schematic diagram of the power testing device in its stowed state.

[0039] The above figures include the following reference numerals:

[0040] 1. Base;

[0041] 11. Guide groove; 12. Storage groove; 13. Notch;

[0042] 2. Outrigger assembly;

[0043] 21. First arm; 211. First through hole; 212. First reinforcing rib;

[0044] 22. Second support arm; 221. Second through hole; 222. Second reinforcing rib;

[0045] 3. Connecting components;

[0046] 31. Outrigger support; 32. Rotary seat; 33. Locking element; 34. T-slot bolt;

[0047] 4. Test components;

[0048] 41. Force sensor; 42. Mounting base; 43. Encoder; 431. Adapter shaft;

[0049] 5. Sliding component;

[0050] 51. Slider; 52. Lead screw; 53. Bearing with mounting bracket;

[0051] 6. Push rod mechanism;

[0052] 7. Support legs;

[0053] 8. Pallet;

[0054] 9. The power system under test;

[0055] 91. Electric motor; 92. Propeller;

[0056] 100. Outrigger pin. Detailed Implementation

[0057] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0058] Combination Figures 1 to 9 As shown, according to a specific embodiment of this application, a power testing device is provided.

[0059] Specifically, the power testing device includes a base 1, a support arm assembly 2, and a testing assembly 4. One end of the support arm assembly 2 is connected to the base 1 via a connecting assembly 3, and the testing assembly 4 is connected to the other end of the support arm assembly 2. The testing assembly 4 is used to mount the power system 9 to be tested. The connecting assembly 3 is movably arranged relative to the base 1 along a first direction, so that the support arm assembly 2 can drive the power system 9 to be tested to move along the first direction to a first testing position. The connecting assembly 3 is also rotatably arranged relative to the base 1 along a second direction, so that the support arm assembly 2 can drive the power system 9 to be tested to rotate along the second direction to a second testing position.

[0060] In the embodiments of this application, one end of the support arm assembly 2 is connected to the base 1 via the connecting assembly 3, and the other end of the support arm assembly 2 is connected to the test assembly 4. The power system 9 under test is connected to the test assembly 4. By adjusting the position and angle of the connecting assembly 3 relative to the base 1, the position and angle of the support arm assembly 2 can be adjusted, thereby adjusting the position and angle of the test assembly 4. Compared with the adjustment method of the test device in the prior art, the power test device in this application does not need to set a special tooling or fixture at the end of the test assembly 4 to adjust the position and angle of the power system 9 under test by frequently changing the tooling or fixture. That is, the power test device in this application can flexibly adjust the position and angle of the propeller 92 in the power system 9 under test relative to the base 1, thereby improving the versatility of the power test device to adapt to various test scenarios.

[0061] It should be noted that the movement of the connecting component 3 relative to the base 1 along the first direction means that the connecting component 3 moves on the first horizontal plane, where the first horizontal plane refers to the horizontal plane where the base 1 is located, or the first horizontal plane is parallel to the horizontal plane where the base 1 is located. For example, the connecting component 3 moves along the width direction of the base 1, or the connecting component 3 moves along the length direction of the base 1. The rotatability of the connecting component 3 relative to the base 1 along the second direction means that the connecting component 3 rotates about the first axis of rotation, where the first axis of rotation is perpendicular to the first horizontal plane, or the first axis of rotation is located on the first horizontal plane. There are one or more first test positions, and one or more second test positions.

[0062] In one exemplary embodiment of this application, the support arm assembly 2 includes a plurality of supports, one of which is connected to the connecting assembly 3, and the remaining supports are connected sequentially along a third direction. The support arm furthest from the connecting assembly 3 is connected to the test assembly 4. The support arm furthest from the connecting assembly 3 is rotatably disposed relative to at least one of the remaining supports, so that the support arm furthest from the connecting assembly 3 drives the power system 9 under test to move to the third test position.

[0063] In the embodiments of this application, the arm assembly 2 rotates relative to the base 1 as a whole, and the arm furthest from the connecting assembly 3 can rotate relative to at least one of the other arms. With this configuration, the rotation angle of the propeller 92 relative to the base 1 can be adjusted by operating the connecting assembly 3 or the arm assembly 2, so that the angle adjustment is more flexible.

[0064] It should be noted that "the remaining outriggers are connected sequentially along the third direction" means that multiple outriggers are connected sequentially along the length of the outriggers. There may be one or more third test locations.

[0065] Preferably, the rotation axis of the support arm is perpendicular to the rotation axis of the connecting assembly 3. That is, the support arm furthest from the connecting assembly 3 can rotate independently in two mutually perpendicular planes, so that the propeller 92 can exhibit a variety of flight attitudes to meet the testing needs of more test scenarios.

[0066] Preferably, there are multiple support arm assemblies 2, and the distance between the multiple support arm assemblies 2 is adjustable. The power testing device is equipped with multiple sets of support arm assemblies 2 to meet the testing requirements of multiple power systems 9 under test simultaneously, thereby meeting the testing requirements of various types of aircraft.

[0067] In one exemplary embodiment of this application, the support arm assembly 2 includes a first support arm 21 and a second support arm 22. One end of the first support arm 21 is connected to the base 1 via a connecting assembly 3, and the other end of the first support arm 21 is hinged to the second support arm 22. The end of the second support arm 22 away from the first support arm 21 is connected to the test assembly 4. The support arm assembly 2 includes two support arms, which simplifies the structure of the support arm assembly 2 and reduces testing costs while still allowing for support arm angle adjustment.

[0068] like Figure 1 , Figure 2 As shown, the first support arm 21 and the second support arm 22 are hinged together by a support arm pin 100, and the rotation axis of the second support arm 22 is parallel to the horizontal plane of the base 1. Each end of the support arm pin 100 has a flange plate, and the support arm pin 100 is screwed to the side walls of the first support arm 21 and the second support arm 22 via the flange plates. When adjusting the angle of the second support arm 22 relative to the first support arm 21, the bolts or screws connecting the flange plates to the first and second support arms 21 are removed, allowing the second support arm 22 to rotate relative to the first support arm 21. After the angle of the second support arm 22 is adjusted, the flange plates are locked to the first and second support arms 21 and 22 using bolts or screws to maintain the preset angle of the second support arm 22.

[0069] Furthermore, the connecting assembly 3 includes a support arm base 31 and a rotating base 32. The support arm base 31 is slidably connected to the base 1. One end of the rotating base 32 is connected to the first support arm 21, and the other end of the rotating base 32 is connected to the support arm base 31 via a locking member 33. The locking member 33 has a locking position that locks the rotating base 32 relative to the support arm base 31, and an unlocking position that allows the rotating base 32 to rotate relative to the support arm base 31. The structural design that allows the support arm base 31 and the rotating base 32 to rotate relative to each other simplifies the angle adjustment process of the support arm assembly 2. The operator only needs to drive the rotating base 32 to rotate relative to the support arm base 31 to realize the horizontal movement and angle adjustment of the support arm assembly 2, without complicated operating procedures or the use of special tools.

[0070] like Figure 3 As shown, the rotating seat 32 is formed on the first support arm 21, and the bottom of the rotating seat 32 has a rotating groove. The support arm seat 31 is slidably connected to the base 1 through the sliding assembly 5. The top of the support arm seat 31 has a rotating protrusion, and the support arm seat 31 is inserted into the rotating groove of the rotating seat 32 through the rotating protrusion. Both the rotating groove and the rotating protrusion are cylindrical structures. The locking member 33 is a screw, and the rotating seat 32 and the support arm seat 31 are connected by the screw. When adjusting the angle of the first support arm 21 relative to the base 1, the locking member 33 is removed so that the rotating seat 32 can rotate relative to the support arm seat 31, driving the rotating seat 32 to rotate relative to the support arm seat 31. After the angle adjustment is completed, the rotating seat 32 and the support arm seat 31 are connected and locked by the locking member 33.

[0071] Furthermore, the support arm 31 is connected to the base 1 via a sliding assembly 5. The sliding assembly 5 includes a slider 51 and a lead screw 52. The lead screw 52 is rotatably mounted on the base 1, and the slider 51 is threadedly connected to the lead screw 52, ​​driving the lead screw 52 to rotate and thus move the support arm 31 along the length of the lead screw 52. By driving the support arm 31 to move relative to the base 1 through the rotation of the lead screw 52, ​​fine-tuning of the position of the support arm 31 can be achieved, thereby achieving fine-tuning of the propeller 92 pitch, which helps to improve testing accuracy.

[0072] like Figure 3 , Figure 4 , Figure 5 As shown, the lead screw 52 is connected to the base 1 via two bearings 53. One end of the lead screw 52 is equipped with a rocker arm, which can be rotated to drive the lead screw 52 to rotate. The slider 51 is slidably connected to the base 1. The top surface of the base 1 is provided with a guide groove 11, which extends along the length of the base 1. The slider 51 is inserted into the guide groove 11 via a T-slot bolt 34, thereby limiting the sliding trajectory of the slider 51. The slider 51 is threadedly connected to the lead screw 52, ​​and the rotation of the lead screw 52 drives the slider 51 to slide along the length of the guide groove 11.

[0073] like Figure 1 As shown, the support arm seats 31 on both sets of support arm assemblies 2 are connected to the base 1 through the sliding assembly 5, which drives the lead screw 52 corresponding to each support arm assembly 2 to rotate, so as to realize the adjustment of the distance between the two sets of support arm assemblies 2.

[0074] Furthermore, the support arm assembly 2 also includes a push rod mechanism 6, which includes a fixed rod and a drive rod. The drive rod is slidably connected to the fixed rod, the fixed rod is rotatably connected to the first support arm 21, and the drive rod is rotatably connected to the second support arm 22. When the second support arm 22 rotates relative to the first support arm 21, the drive rod can move relative to the fixed rod to support the second support arm 22. The push rod mechanism 6 is supported between the first support arm 21 and the second support arm 22, providing a supporting force to keep the second support arm 22 at a preset angle, preventing the second support arm 22 from rotating relative to the first support arm 21 after angle adjustment, thereby ensuring test accuracy.

[0075] Among them, the push rod mechanism 6 is a gas spring, air cylinder, hydraulic cylinder or electric cylinder.

[0076] In one exemplary embodiment of this application, the first arm 21 is provided with a plurality of first through holes 211, which are spaced apart along the length direction of the first arm 21; and the second arm 22 is provided with a plurality of second through holes 221, which are spaced apart along the length direction of the second arm 22.

[0077] Under different test conditions (such as horizontal and vertical states), the distribution and direction of airflow will change. By setting ventilation holes on each arm to optimize the airflow path, the influence of the arms on the airflow of the propeller 92 is reduced, so as to ensure that the measurement of parameters such as force and torque during the test is more accurate and to reduce test errors caused by airflow interference.

[0078] like Figure 2 As shown, the first arm 21 and the second arm 22 are made of H-beams. Multiple first through holes 211 are provided on the web of the first arm 21 along the length direction of the first arm 21, and multiple second through holes 221 are provided on the web of the second arm 22 along the length direction of the second arm 22.

[0079] Preferably, the first arm 21 is provided with a plurality of first reinforcing ribs 212, which are spaced apart along the length of the first arm 21, and a first through hole 211 is located between two adjacent first reinforcing ribs 212; and / or, the second arm 22 is provided with a plurality of second reinforcing ribs 222, which are spaced apart along the length of the second arm 22, and a second through hole 221 is located between two adjacent second reinforcing ribs 222. The provision of the first reinforcing ribs 212 and / or the second reinforcing ribs 222 is to improve the rigidity of the arm assembly 2.

[0080] like Figure 2 As shown, the first reinforcing rib 212 is connected between the two flanges of the first arm 21, and the second reinforcing rib 222 is connected between the two flanges of the second arm 22.

[0081] In one exemplary embodiment of this application, the base 1 is supported on the ground by a plurality of legs 7, which are rotatably connected to the base 1. Each leg 7 has a supporting position extending outward from the base 1 and a retractable position within the base 1. The arrangement of the legs 7 increases the contact area between the base 1 and the ground, thereby improving the stability of the dynamic testing device.

[0082] Specifically, such as Figure 4 , Figure 5 As shown, the base 1 has storage slots 12 on its two opposite sides, extending along the length of the base 1. A notch 13 is provided on the side where the storage slot 12 is located, extending along the thickness of the base 1. The base 1 has four support legs 7, which are rotatably connected to the base 1 via pins. After the position of the support legs 7 is adjusted, they are locked to the base 1 using bolts or screws. Figure 7 , Figure 8 As shown, according to the test requirements and test site, the rotation angle of the support leg 7 relative to the base 1 is adjusted before the test to maximize the contact area between the base 1 and the ground. Figure 9As shown, after the test is completed, the support leg 7 is rotated into the storage slot 12 and locked onto the base 1 with bolts or screws to facilitate the storage and transportation of the power testing device.

[0083] The support leg 7 is equipped with an adjustable foot cup. The support leg 7 is supported on the ground via the adjustable foot cup, which is connected to the support leg 7 via a stud. By adjusting the height of the foot cup relative to the support leg 7, the overall height of the power testing device can be changed. Figure 9 As shown, after the test is completed, the adjustable foot cup can be stored inside the notch 13.

[0084] In one exemplary embodiment of this application, the test assembly 4 includes a force sensor 41, a mounting base 42, and an encoder 43. The force sensor 41 is connected to the end of the support arm assembly 2 away from the base 1, and the mounting base 42 is connected to the end of the force sensor 41 away from the support arm assembly 2. The mounting base 42 has a receiving cavity, and the encoder 43 is disposed within the receiving cavity. The adapter shaft 431 of the encoder 43 extends from the opening end of the receiving cavity. The mounting base 42 is used to mount the encoder 43 and the power system 9 under test. By placing the encoder 43 within the receiving cavity of the mounting base 42, the overall size of the test assembly 4 can be shortened, making the structure of the power testing device more compact.

[0085] like Figure 6 As shown, the power system under test 9 includes a motor 91 and a propeller 92, which are connected. The motor 91 drives the propeller 92 to rotate. A force sensor 41 is connected to one side wall of the second support arm 22 via a connecting seat. A mounting seat 42 is connected between the force sensor 41 and the power system under test 9. One end of the mounting seat 42 is connected to the force sensor 41, and the other end is connected to the motor 91. An encoder 43 is installed in the receiving cavity of the mounting seat 42, and the adapter shaft 431 of the encoder 43 is rotatably disposed in the receiving cavity of the mounting seat 42 via a bearing. The encoder 43 is connected to the rotating shaft of the motor 91 via the adapter shaft 431 to test the rotational speed and position information of the motor 91. The force sensor 41 is used to measure the force and torque generated by the power system under test 9 during operation. For example, simultaneously measuring the force and torque generated by the two propellers 92 helps to analyze the interaction and coupling effect between the propellers 92.

[0086] Furthermore, the test assembly 4 also includes current sensors, temperature sensors, and voltage sensors. A tray 8 is attached to the side wall of the first arm 21, which is used to place test instruments and accessories such as current sensors, temperature sensors, and voltage sensors.

[0087] In this application, "multiple" refers to two or more.

[0088] In this application, unless otherwise expressly defined, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0089] The terms “first,” “second,” “third,” “fourth,” etc., in this application (if present) are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0090] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0091] Unless otherwise specified, all steps in this application may be performed sequentially or randomly. For example, if the method includes steps A and B, it means that the method may include steps A and B performed sequentially, or it may include steps B and A performed sequentially. For example, if the method may also include step C, it means that step C may be added to the method in any order. For example, the method may include steps A, B, and C, or it may include steps A, C, and B, or it may include steps C, A, and B, etc.

[0092] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A dynamic testing device, characterized in that, include: Base (1); Support arm assembly (2), one end of which is connected to the base (1) via a connecting assembly (3); Test component (4), which is connected to the other end of the support arm assembly (2), and is used to install the power system (9) under test; The connecting component (3) is movably disposed relative to the base (1) along a first direction, so that the support arm component (2) can drive the power system under test (9) to move along the first direction to a first test position. The connecting component (3) is rotatably disposed relative to the base (1) along a second direction, so that the support arm component (2) can drive the power system under test (9) to rotate along the second direction to a second test position.

2. The power testing device according to claim 1, characterized in that, The arm assembly (2) includes multiple arms, one of which is connected to the connecting assembly (3), and the remaining arms are connected sequentially along a third direction. The arm furthest from the connecting assembly (3) is connected to the test assembly (4). The arm furthest from the connecting assembly (3) is rotatably arranged relative to at least one of the remaining arms so that the arm furthest from the connecting assembly (3) drives the power system under test (9) to move to the third test position.

3. The power testing device according to claim 2, characterized in that, The rotation axis of the support arm is perpendicular to the rotation axis of the connecting assembly (3).

4. The power testing device according to claim 1, characterized in that, The support arm assembly (2) includes a first support arm (21) and a second support arm (22). One end of the first support arm (21) is connected to the base (1) via a connecting assembly (3). The other end of the first support arm (21) is hinged to the second support arm (22). The end of the second support arm (22) away from the first support arm (21) is connected to the test assembly (4).

5. The power testing device according to claim 4, characterized in that, The connection component (3) includes: Support arm seat (31), the support arm seat (31) is slidably connected to the base (1); A rotating seat (32) is provided, one end of which is connected to the first support arm (21), and the other end of which is connected to the support arm seat (31) via a locking member (33). The locking member (33) has a locking position that locks the rotating seat (32) relative to the support arm seat (31), and an unlocking position that allows the rotating seat (32) to rotate relative to the support arm seat (31).

6. The power testing device according to claim 5, characterized in that, The support arm seat (31) is connected to the base (1) via a sliding assembly (5). The sliding assembly (5) includes a slider (51) and a lead screw (52). The lead screw (52) is rotatably mounted on the base (1). The slider (51) is threadedly connected to the lead screw (52) to drive the lead screw (52) to rotate so as to move the support arm seat (31) along the length direction of the lead screw (52).

7. The power testing device according to claim 4, characterized in that, The outrigger assembly (2) also includes: The push rod mechanism (6) includes a fixed rod and a drive rod. The drive rod is slidably connected to the fixed rod, the fixed rod is rotatably connected to the first support arm (21), and the drive rod is rotatably connected to the second support arm (22). When the second support arm (22) rotates relative to the first support arm (21), the drive rod can move relative to the fixed rod to support the second support arm (22).

8. The power testing device according to claim 4, characterized in that, The first arm (21) is provided with a plurality of first through holes (211), which are spaced apart along the length direction of the first arm (21). The second arm (22) is provided with a plurality of second through holes (221), which are spaced apart along the length direction of the second arm (22).

9. The power testing device according to claim 8, characterized in that, The first arm (21) is provided with a plurality of first reinforcing ribs (212), which are spaced apart along the length of the first arm (21), and the first through hole (211) is located between two adjacent first reinforcing ribs (212); and / or, the second arm (22) is provided with a plurality of second reinforcing ribs (222), which are spaced apart along the length of the second arm (22), and the second through hole (221) is located between two adjacent second reinforcing ribs (222).

10. The power testing device according to claim 1, characterized in that, The base (1) is supported on the ground by a plurality of legs (7), which are rotatably connected to the base (1). The legs (7) have a support position extending outward away from the base (1) and a storage position that is stored inside the base (1).

11. The power testing device according to claim 1, characterized in that, The test component (4) includes: Force sensor (41), the force sensor (41) is connected to the end of the support arm assembly (2) away from the base (1); Mounting base (42), the mounting base (42) is connected to the end of the force sensor (41) away from the arm assembly (2), the mounting base (42) is provided with a receiving cavity; An encoder (43) is disposed in the receiving cavity, and the adapter shaft (431) of the encoder (43) extends out from the opening end of the receiving cavity.

12. The power testing device according to any one of claims 1-11, characterized in that, There are multiple outrigger assemblies (2), and the distance between the multiple outrigger assemblies (2) is adjustable.

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