Anti-interference two-channel static loading device

Abstract

The application provides an anti-interference two-channel static loading device, and belongs to the technical field of static tests, and specifically, a force loading driving mechanism is used to apply a force to a first balance lever, the force on the first balance lever is transmitted to a second balance lever through a first sliding block, an intermediate connecting rod and a second sliding block, the force output by a first force loading assembly and a second force loading assembly can be controlled by changing the force loading driving mechanism, and the total loading force of the two loading channels can be controlled. The position of the first sliding block on the first balance lever is controlled by a first driving mechanism, and due to the balance mechanism, the distance from the first sliding block to the second end of the first balance lever is always equal to the distance from the second sliding block to the second end of the second balance lever, so that the position of the second sliding block changes while the position of the first sliding block is adjusted, and the position of the second sliding block adjusts the proportion of the force distributed to the first force loading assembly and the second force loading assembly.

Description

Technical Field

[0001] The present application relates to the field of static testing, and in particular to an anti-interference two-channel static loading device. Background Art

[0002] Static tests are common tests for assessing the static strength of components and the transmission performance of mechanisms. To more accurately simulate the forces acting on components, two or more independently controllable forces are usually applied to a single component. However, once a component deforms or undergoes mechanical movement, the forces between the channels will interfere with each other, reducing the loading control accuracy and affecting the stability of the system. Therefore, a loading device is needed that can adjust the loading force of each channel while avoiding mutual interference between the forces of different channels, thereby improving loading accuracy and reducing control difficulty. Summary of the Invention

[0003] In view of this, the present application provides a two-channel static loading device with anti-interference, which solves the problems in the prior art. It realizes the control of the loading force of the two channels through a force control channel and a displacement control channel. At the same time, it avoids the mutual interference between the two loading forces and reduces the control difficulty of the loading system.

[0004] The present application provides an anti-interference two-channel static loading device that adopts the following technical solution:

[0005] An anti-interference two-channel static loading device includes a mounting frame, a first balancing lever, a second balancing lever, a first force loading assembly, and a second force loading assembly;

[0006] The first end of the mounting frame and the first end of the first balance lever are connected via a support assembly, and the middle portion of the first balance lever is connected to the second end of the mounting frame via a force-loading drive mechanism, wherein the force-loading drive mechanism is used to drive the middle portion of the first balance lever away from or toward the second end of the mounting frame;

[0007] The second end of the second balance lever is hinged to one end of the first force loading assembly, and the middle portion of the second balance lever is hinged to one end of the second force loading assembly;

[0008] The first balancing lever is provided with a first slider that slides along the length direction of the first balancing lever, the first balancing lever is provided with a first driving mechanism that drives the first slider to slide, the second balancing lever is provided with a second slider that slides along the length direction of the second balancing lever, the first slider and the second slider are connected by an intermediate connecting rod, one end of the intermediate connecting rod is hinged to the first slider, and the other end of the intermediate connecting rod is hinged to the second slider;

[0009] A balancing mechanism is provided between the first balancing lever and the second balancing lever, the balancing mechanism connecting the second end of the first balancing lever and the second end of the second balancing lever, the balancing mechanism being configured to ensure that the distance from the first slider to the second end of the first balancing lever is always equal to the distance from the second slider to the second end of the second balancing lever;

[0010] Among them, the hinge axis of the first force loading assembly, the hinge axis of the second force loading assembly, and the hinge axes at both ends of the intermediate connecting rod are parallel to each other and perpendicular to the length direction of the first balance lever and the output direction of the output shaft of the force loading drive mechanism.

[0011] Optionally, the force loading drive mechanism is an actuator, the sleeve of the actuator is hinged to the second end of the mounting frame, the push rod of the actuator is hinged to the middle part of the first balance lever, the support assembly includes a first support link and a second support link, one end of the first support link and the second support link is coaxially hinged to the first end of the first balance lever, the other end of the first support link and the other end of the second support link are respectively hinged to the mounting frame, and the hinge points of the first support link and the second support link connecting the mounting frame are arranged at intervals along the direction from the first end to the second end of the mounting frame;

[0012] The hinge axis of the actuator, the hinge axis of the first supporting link and the hinge axis of the second supporting link are parallel to each other and perpendicular to the length direction of the first balancing lever and the telescopic direction of the push rod of the actuator.

[0013] Optionally, the balancing mechanism includes a linkage assembly and a telescopic rod;

[0014] The linkage assembly includes a first balancing link, a second balancing link, a third balancing link and a fourth balancing link, one end of the first balancing link is hinged to the first slider, and the hinge axis of the first balancing link and the first slider is coaxial with the hinge axis of one end of the intermediate link and the first slider, one end of the second balancing link is hinged to the second slider, the hinge axis of the second balancing link and the second slider is coaxial with the hinge axis of one end of the intermediate link and the second slider, the other end of the first balancing link is rotatably provided with a first gear, the other end of the second balancing link is rotatably provided with a second gear, the first gear and the second gear are meshed, and a first stabilizing link is provided between the first gear and the second gear, one end of the first stabilizing link is rotatably connected to the rotating shaft of the first gear, and the other end of the first stabilizing link is rotatably connected to the rotating shaft of the second gear;

[0015] One end of the third balancing link is hinged to the second end of the first balancing lever, one end of the fourth balancing link is hinged to the second end of the second balancing lever, the other end of the third balancing link is rotatably provided with a third gear, and the other end of the fourth balancing link is rotatably provided with a fourth gear, the third gear and the fourth gear are meshed, and a second stabilizing link is provided between the third gear and the fourth gear, one end of the second stabilizing link is rotatably connected to the rotating shaft of the third gear, and the other end of the second stabilizing link is rotatably connected to the rotating shaft of the fourth gear; the telescopic rod includes a sliding rod and a sliding cylinder sleeved on the outer periphery of the sliding rod, the sliding rod and the sliding cylinder are slidably arranged, the first stabilizing link is fixedly connected to one end of the sliding rod, and the second stabilizing link is fixedly connected to the sliding cylinder;

[0016] Among them, the first balancing link, the second balancing link, the third balancing link, the fourth balancing link hinge shafts and the rotating shafts of the first gear, the second gear, the third gear and the fourth gear are parallel to each other and perpendicular to the length direction of the first balancing lever and the output direction of the output shaft of the force loading drive mechanism. The spacing between the hinge shafts at both ends of the first balancing link is equal to the spacing between the hinge shafts at both ends of the second balancing link. The spacing between the hinge shafts at both ends of the third balancing link is equal to the spacing between the hinge shafts at both ends of the fourth balancing link. The number of teeth and the module of the first gear and the second gear are equal, and the number of teeth and the module of the third gear and the fourth gear are equal.

[0017] Optionally, the balancing mechanism includes two sets of linkage components, and there are two intermediate connecting rods, the two intermediate connecting rods are parallel and aligned with each other, and the telescopic rod is located between the two intermediate connecting rods;

[0018] Each set of the linkage assembly includes a first balancing link, a second balancing link, a third balancing link, a fourth balancing link, a first gear, a second gear, a third gear, a fourth gear, a first stabilizing link, and a second stabilizing link;

[0019] The rotating shafts of the two first gears, the rotating shafts of the two second gears, the rotating shafts of the two third gears, and the rotating shafts of the two fourth gears of the two sets of the linkage assemblies are fixedly connected by connecting shafts;

[0020] The telescopic rod is located between the two sets of linkage components.

[0021] Optionally, the second balancing lever is provided with a second driving mechanism for driving the second slider to slide along the length direction of the second balancing lever.

[0022] Optionally, the first drive mechanism and the second drive mechanism are both pneumatic actuators or hydraulic actuators, the front cavities of the first drive mechanism and the second drive mechanism are connected to the same medium delivery pipe through pipes, and the tail cavities of the first drive mechanism and the second drive mechanism are connected to the same medium delivery pipe through pipes.

[0023] In summary, this application has the following beneficial technical effects:

[0024] A force is applied to the first balancing lever via a force-loading drive mechanism. This force is then transmitted to the second balancing lever via the first slider, the intermediate connecting rod, and the second slider. Changing the force-loading drive mechanism controls the magnitude of the force output by the first and second force-loading assemblies, thereby controlling the total loading force of the two loading channels. The first drive mechanism controls the position of the first slider on the first balancing lever. Since the balancing mechanism ensures that the distance from the first slider to the second end of the first balancing lever is always equal to the distance from the second slider to the second end of the second balancing lever, adjusting the position of the first slider also changes the position of the second slider. Changing the position of the second slider adjusts the ratio of the forces distributed to the first and second force-loading assemblies. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0026] Figure 1 This is a schematic diagram of the overall structure of the anti-interference two-channel static loading device of this application;

[0027] Figure 2 This is a schematic diagram of the structure of the linkage components of this application;

[0028] Figure 3 This is a structural diagram of the linkage components of this application from another perspective;

[0029] Figure 4 This is a schematic diagram of the gas circuit connection between the first drive mechanism and the second drive mechanism of this application.

[0030] Explanation of the accompanying drawings: 1. Mounting frame; 11. Support assembly; 12. First supporting link; 13. Second supporting link; 14. Mounting plate; 2. First balancing lever; 21. First slider; 22. First driving mechanism; 3. Second balancing lever; 31. Second slider; 32. Second driving mechanism; 4. First force loading assembly; 5. Second force loading assembly; 6. Force loading driving mechanism; 7. Intermediate link; 8. Balancing mechanism; 81. Linkage assembly; 811. First balancing link; 812. Second balancing link; 813. Third balancing link; 814. Fourth balancing link; 815. First gear; 816. Second gear; 817. Third gear; 818. Fourth gear; 82. Telescopic rod; 821. Sliding rod; 822. Sliding cylinder; 83. First stabilizing link; 84. Second stabilizing link; 85. Connecting shaft; 9. Pipeline; 91. Medium conveying pipe. DETAILED DESCRIPTION

[0031] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0032] The following describes the embodiments of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the features in the following embodiments and embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of this application.

[0033] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on this application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement an apparatus and / or practice a method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this apparatus and / or practice this method.

[0034] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The illustrations only show components related to the present application and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0035] Additionally, in the following description, specific details are provided to provide a thorough understanding of the examples. However, one skilled in the art will appreciate that the aspects described can be practiced without these specific details.

[0036] An embodiment of the present application provides a two-channel static loading device that is resistant to mutual interference.

[0037] like Figure 1 As shown, an anti-interference two-channel static loading device includes a mounting frame 1, a first balance lever 2, a second balance lever 3, a first force loading component 4 and a second force loading component 5.

[0038] The first end of the mounting frame 1 and the first end of the first balance lever 2 are connected through a support assembly 11, and the middle part of the first balance lever 2 is connected to the second end of the mounting frame 1 through a force loading drive mechanism 6. The force loading drive mechanism 6 is used to drive the middle part of the first balance lever 2 away from or close to the second end of the mounting frame 1.

[0039] The second end of the second balancing lever 3 is hinged to one end of the first force loading assembly 4 , and the middle portion of the second balancing lever 3 is hinged to one end of the second force loading assembly 5 .

[0040] The first balancing lever 2 is provided with a first slider 21 that slides along the length direction of the first balancing lever 2, and the first balancing lever 2 is provided with a first driving mechanism 22 that drives the first slider 21 to slide. The second balancing lever 3 is provided with a second slider 31 that slides along the length direction of the second balancing lever 3. The first slider 21 and the second slider 31 are connected by an intermediate connecting rod 7, one end of the intermediate connecting rod 7 is hinged to the first slider 21, and the other end of the intermediate connecting rod 7 is hinged to the second slider 31.

[0041] A balancing mechanism 8 is provided between the first balancing lever 2 and the second balancing lever 3. The balancing mechanism 8 connects the second end of the first balancing lever 2 and the second end of the second balancing lever 3. The balancing mechanism 8 is used to ensure that the distance from the first slider 21 to the second end of the first balancing lever 2 is always equal to the distance from the second slider 31 to the second end of the second balancing lever 3.

[0042] The hinge axis of the first force loading assembly 4, the hinge axis of the second force loading assembly 5, and the hinge axes at both ends of the intermediate link 7 are parallel to each other and perpendicular to the length direction of the first balance lever 2 and the output direction of the output shaft of the force loading drive mechanism 6. It should be noted that the concepts of the first end and the second end are based on the Figure 1 For example, the right side is the first end and the left side is the second end.

[0043] The force-loading drive mechanism 6 applies a force to the first balancing lever 2. This force on the first balancing lever 2 is transmitted to the second balancing lever 3 via the first slider 21, the intermediate connecting rod 7, and the second slider 31. Changing the force-loading drive mechanism 6 controls the magnitude of the force output by the first and second force-loading components 4 and 5, thereby controlling the total loading force of the two loading channels. The first drive mechanism 22 controls the position of the first slider 21 on the first balancing lever 2. Because the balancing mechanism 8 ensures that the distance from the first slider 21 to the second end of the first balancing lever 2 is always equal to the distance from the second slider 31 to the second end of the second balancing lever 3, adjusting the position of the first slider 21 also changes the position of the second slider 31. This change in the position of the second slider 31 adjusts the ratio of the force distributed to the first and second force-loading components 4 and 5. The force distribution ratio between the first and second force-loading components 4 and 5 can be calculated based on the principle of leverage. Ultimately, control of the loading force of the two channels is achieved through a single force control channel and a single displacement control channel. When the loaded object undergoes minor deformation, the second balancing lever 3 rotates under the constraints of the balancing mechanism 8 and the intermediate connecting rod 7, achieving adaptive adaptation to the deformation.

[0044] When the loaded object undergoes a small deformation or displacement under the action of the first and second force-applying assemblies 4 and 5, if the deformation or displacement is inconsistent along the force-applying directions of the first and second force-applying assemblies 4 and 5, the second balancing lever 3 will rotate relative to the first balancing lever 2 to accommodate this deformation inconsistency. When the deformation is small, the rotation of the second balancing lever 3 has little effect on the force distribution ratio between the first and second force-applying assemblies 4 and 5, and in practical engineering, the distribution ratio can be assumed to remain unchanged.

[0045] In the embodiment of the present application, the first force loading assembly 4 includes two parallel first force loading rods, the ipsilateral ends of the two first loading rods being coaxially hinged with the second end of the second balance lever 3, and the other ends of the two first loading rods being hinged to the loaded object. The second loading assembly includes two parallel second force loading rods, the ipsilateral ends of the two second loading rods being coaxially hinged with the middle portion of the second balance lever 3, and the other ends of the two second loading rods being hinged to the loaded object. The first and second ends of the mounting frame 1 are both hingedly connected to mounting plates 14, which are used to securely mount the entire device to an external fixed base and determine the spatial position of the entire device.

[0046] The force-loading drive mechanism 6 is an actuator, the sleeve of which is hinged to the second end of the mounting frame 1, and the push rod of which is hinged to the middle portion of the first balance lever 2. The support assembly 11 includes a first support link 12 and a second support link 13. One end of the first support link 12 and the second support link 13 are coaxially hinged to the first end of the first balance lever 2, and the other ends of the first support link 12 and the other ends of the second support link 13 are respectively hinged to the mounting frame 1. The hinge points where the first support link 12 and the second support link 13 connect to the mounting frame 1 are spaced apart in the direction from the first end to the second end of the mounting frame 1. The extension and retraction of the actuator changes the force applied to the first balance lever 2, ultimately changing the force applied by the first force-loading assembly 4 and the second force-loading assembly 5 to the loaded object.

[0047] In the embodiment of the present application, the length of the first balance lever 2 is equal to the length of the second balance lever 3, the hinge point between the first support link 12 and the mounting frame 1 is closer to the first end of the mounting frame 1 than the hinge point between the second support link 13 and the mounting frame 1, and the first balance lever 2 and the second balance lever 3 are provided with slide rails, and the first slider 21 and the second slider 31 are respectively slidably set on their respective corresponding slide rails.

[0048] The hinge axis of the actuator, the hinge axis of the first supporting link 12 and the hinge axis of the second supporting link 13 are parallel to each other and perpendicular to the length direction of the first balancing lever 2 and the telescopic direction of the actuator push rod.

[0049] like Figure 2 and Figure 3 As shown, the balancing mechanism 8 includes a linkage assembly 81 and a telescopic rod 82 .

[0050] The linkage assembly 81 includes a first balancing link 811, a second balancing link 812, a third balancing link 813 and a fourth balancing link 814. One end of the first balancing link 811 is hinged to the first slider 21, and the hinge axis of the first balancing link 811 and the first slider 21 is coaxial with the hinge axis of one end of the intermediate link 7 and the first slider 21. One end of the second balancing link 812 is hinged to the second slider 31, and the hinge axis of the second balancing link 812 and the second slider 31 is coaxial with the hinge axis of one end of the intermediate link 7 and the first slider 21. The hinge axes of the two sliders 31 are coaxial, and the other end of the first balancing link 811 is rotatably provided with a first gear 815, and the other end of the second balancing link 812 is rotatably provided with a second gear 816, the first gear 815 and the second gear 816 are meshed, and a first stabilizing link 83 is provided between the first gear 815 and the second gear 816, one end of the first stabilizing link 83 is rotatably connected to the rotating shaft of the first gear 815, and the other end of the first stabilizing link 83 is rotatably connected to the rotating shaft of the second gear 816.

[0051] One end of the third balancing link 813 is hinged to the second end of the first balancing lever 2, one end of the fourth balancing link 814 is hinged to the second end of the second balancing lever 3, the other end of the third balancing link 813 is rotatably provided with a third gear 817, and the other end of the fourth balancing link 814 is rotatably provided with a fourth gear 818, the third gear 817 and the fourth gear 818 are meshed, and a second stabilizing link 84 is provided between the third gear 817 and the fourth gear 818, one end of the second stabilizing link 84 is rotatably connected to the rotating shaft of the third gear 817, and the other end of the second stabilizing link 84 is rotatably connected to the rotating shaft of the fourth gear 818.

[0052] The telescopic rod 82 includes a sliding rod 821 and a sliding cylinder 822 sleeved on the outer circumference of the sliding rod 821. The sliding rod 821 and the sliding cylinder 822 are slidingly arranged. The first stabilizing link 83 is fixedly connected to one end of the sliding rod 821, and the second stabilizing link 84 is fixedly connected to the sliding cylinder 822.

[0053] Among them, the hinge axes of the first balancing link 811, the second balancing link 812, the third balancing link 813, and the fourth balancing link 814 and the rotating axes of the first gear 815, the second gear 816, the third gear 817 and the fourth gear 818 are parallel to each other and perpendicular to the length direction of the first balancing lever 2 and the output direction of the output shaft of the force loading drive mechanism 6. The spacing between the hinge axes at both ends of the first balancing link 811 is equal to the spacing between the hinge axes at both ends of the second balancing link 812. The spacing between the hinge axes at both ends of the third balancing link 813 is equal to the spacing between the hinge axes at both ends of the fourth balancing link 814. The number of teeth and the module of the first gear 815 and the second gear 816 are equal. The number of teeth and the module of the third gear 817 and the fourth gear 818 are equal.

[0054] The functions of the balancing mechanism 8 are: 1. to ensure that the distance from the first slider 21 to one end of the first balancing lever 2 is always equal to the distance from the second slider 31 to the second balancing lever 3; 2. to ensure that the angle between the first balancing lever 2 and the intermediate connecting rod 7 is equal to the angle between the second balancing lever 3 and the intermediate connecting rod 7 group. Therefore, under the constraint of the intermediate connecting rod 7, the first balancing lever 2 and the second balancing lever 3 can only rotate relative to each other. According to the three-center theorem, this mechanism can be equivalent to the first balancing lever 2 and the second balancing lever 3 being hinged at the midpoint of the intermediate connecting rod 7. The first force loading component 4 and the second force loading component 5 on the second balancing lever 3 are connected to the loaded object through a hinge. According to the lever principle, the force distribution ratio of the two loading pull rod groups can be calculated. In the embodiment of the present application, the constraining effect of the linkage component 81 is independent of the length of the intermediate connecting rod 7. Therefore, if the intermediate connecting rod 7 is replaced with a flexible component that can be stretched, such as an elastic rope, the function it realizes is still effective.

[0055] The balancing mechanism 8 includes two sets of linkage components 81 , and two intermediate connecting rods 7 are provided. The two intermediate connecting rods 7 are parallel and aligned with each other, and the telescopic rod 82 is located between the two intermediate connecting rods 7 .

[0056] Each set of linkage components 81 includes a first balancing link 811, a second balancing link 812, a third balancing link 813 and a fourth balancing link 814, a first gear 815, a second gear 816, a third gear 817, a fourth gear 818, a first stabilizing link 83 and a second stabilizing link 84; the rotating shafts of the two first gears 815, the rotating shafts of the two second gears 816, the rotating shafts of the two third gears 817, and the rotating shafts of the two fourth gears 818 of the two sets of the linkage components 81 are respectively fixedly connected by a connecting shaft 85; the telescopic rod 82 is located between the two sets of linkage components 81.

[0057] The second balancing lever 3 is provided with a second driving mechanism 32 that drives the second slider 31 to slide along the length of the second balancing lever 3. When the loading force is low, after the first driving mechanism 22 drives the first slider 21 to slide, the balancing mechanism 8 ensures that the second slider 31 moves synchronously with the first slider 21. When the loading force is relatively high, the sliding resistance between the first slider 21 and the second slider 31 increases. To ensure that the distance from the first slider 21 to the second end of the first balancing lever 2 is always equal to the distance from the second slider 31 to the second end of the second balancing lever 3, the second driving mechanism 32 is added to the second balancing lever 3 to assist the movement of the second slider 31 and improve the accuracy of the two-channel force loading.

[0058] like Figure 4 As shown, the first drive mechanism 22 and the second drive mechanism 32 are both pneumatic actuators or hydraulic actuators. The front chambers of the first drive mechanism 22 and the second drive mechanism 32 are connected to the same medium delivery pipe 91 via a pipe 9, and the rear chambers of the first drive mechanism 22 and the second drive mechanism 32 are connected to another identical medium delivery pipe 91 via another pipe 9. In the embodiment of the present application, the first drive mechanism 22 and the second drive mechanism 32 are both pneumatic actuators. The two pneumatic actuators serving as the first drive mechanism 22 and the second drive mechanism 32 are connected to ensure synchronous operation of the first drive mechanism 22 and the second drive mechanism 32, further improving the accuracy of force loading in the two channels.

[0059] The initial assembly position of the loading device of the present application should ensure that the first force loading component 4, the second force loading component 5 and the intermediate connecting rod 7 are parallel to each other as much as possible, so as to achieve more accurate proportional distribution of the loading force.

[0060] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A two-channel static loading device with anti-interference, characterized in that: It comprises a mounting frame (1), a first balancing lever (2), a second balancing lever (3), a first force loading assembly (4) and a second force loading assembly (5); The first end of the mounting frame (1) and the first end of the first balancing lever (2) are connected via a support assembly (11); the middle portion of the first balancing lever (2) is connected to the second end of the mounting frame (1) via a force loading drive mechanism (6); the force loading drive mechanism (6) is used to drive the middle portion of the first balancing lever (2) away from or towards the second end of the mounting frame (1); The second end of the second balancing lever (3) is hinged to one end of the first force loading assembly (4), and the middle portion of the second balancing lever (3) is hinged to one end of the second force loading assembly (5); The first balancing lever (2) is provided with a first slider (21) that slides along the length direction of the first balancing lever (2), the first balancing lever (2) is provided with a first driving mechanism (22) that drives the first slider (21) to slide, the second balancing lever (3) is provided with a second slider (31) that slides along the length direction of the second balancing lever (3), the first slider (21) and the second slider (31) are connected via an intermediate connecting rod (7), one end of the intermediate connecting rod (7) is hinged to the first slider (21), and the other end of the intermediate connecting rod (7) is hinged to the second slider (31); A balancing mechanism (8) is provided between the first balancing lever (2) and the second balancing lever (3), the balancing mechanism (8) connecting the second end of the first balancing lever (2) and the second end of the second balancing lever (3), and the balancing mechanism (8) is used to ensure that the distance from the first slider (21) to the second end of the first balancing lever (2) is always equal to the distance from the second slider (31) to the second end of the second balancing lever (3); The hinge axis of the first force loading component (4), the hinge axis of the second force loading component (5), and the hinge axes at both ends of the intermediate connecting rod (7) are parallel to each other and perpendicular to the length direction of the first balance lever (2) and the output direction of the output shaft of the force loading drive mechanism (6).

2. The anti-interference two-channel static loading device according to claim 1 is characterized in that: The force loading drive mechanism (6) is an actuator, the sleeve of the actuator is hinged to the second end of the mounting frame (1), the push rod of the actuator is hinged to the middle part of the first balance lever (2), and the support assembly (11) includes a first support link (12) and a second support link (13), one end of the first support link (12) and the second support link (13) are coaxially hinged to the first end of the first balance lever (2), the other end of the first support link (12) and the other end of the second support link (13) are respectively hinged to the mounting frame (1), and the hinge points of the first support link (12) and the second support link (13) connecting the mounting frame (1) are spaced apart in the direction from the first end to the second end of the mounting frame (1); The hinge axis of the actuator, the hinge axis of the first supporting link (12) and the hinge axis of the second supporting link (13) are parallel to each other and perpendicular to the length direction of the first balancing lever (2) and the telescopic direction of the actuator push rod.

3. The anti-interference two-channel static loading device according to claim 1, characterized in that: The balancing mechanism (8) includes a linkage assembly (81) and a telescopic rod (82); The linkage assembly (81) includes a first balancing link (811), a second balancing link (812), a third balancing link (813) and a fourth balancing link (814), one end of the first balancing link (811) is hinged to the first slider (21), and the hinge axis of the first balancing link (811) and the first slider (21) is coaxial with the hinge axis of one end of the intermediate link (7) and the first slider (21), one end of the second balancing link (812) is hinged to the second slider (31), and the hinge axis of the second balancing link (812) and the second slider (31) is coaxial with the hinge axis of one end of the intermediate link (7) and the first slider (21). The hinge axis of the second slider (31) is coaxial, the other end of the first balancing link (811) is rotatably provided with a first gear (815), the other end of the second balancing link (812) is rotatably provided with a second gear (816), the first gear (815) and the second gear (816) are meshed, and a first stabilizing link (83) is provided between the first gear (815) and the second gear (816), one end of the first stabilizing link (83) is rotatably connected to the rotating shaft of the first gear (815), and the other end of the first stabilizing link (83) is rotatably connected to the rotating shaft of the second gear (816); One end of the third balancing link (813) is hinged to the second end of the first balancing lever (2), and one end of the fourth balancing link (814) is hinged to the second end of the second balancing lever (3). The other end of the third balancing link (813) is provided with a third gear (817) for rotation, and the other end of the fourth balancing link (814) is provided with a fourth gear (818) for rotation. The third gear (817) and the fourth gear (818) are meshed, and a second stabilizing link (84) is provided between the third gear (817) and the fourth gear (818). , one end of the second stabilizing link (84) is rotatably connected to the rotating shaft of the third gear (817), and the other end of the second stabilizing link (84) is rotatably connected to the rotating shaft of the fourth gear (818); the telescopic rod (82) includes a sliding rod (821) and a sliding cylinder (822) sleeved on the outer periphery of the sliding rod (821), the sliding rod (821) and the sliding cylinder (822) are slidably arranged, the first stabilizing link (83) is fixedly connected to one end of the sliding rod (821), and the second stabilizing link (84) is fixedly connected to the sliding cylinder (822); The hinge shafts of the first balancing link (811), the second balancing link (812), the third balancing link (813), and the fourth balancing link (814) and the rotating shafts of the first gear (815), the second gear (816), the third gear (817), and the fourth gear (818) are parallel to each other and perpendicular to the length direction of the first balancing lever (2) and the output direction of the output shaft of the force loading drive mechanism (6). The spacing between the hinge shafts at both ends of the first balancing link (811) is equal to the spacing between the hinge shafts at both ends of the second balancing link (812). The spacing between the hinge shafts at both ends of the third balancing link (813) is equal to the spacing between the hinge shafts at both ends of the fourth balancing link (814). The number of teeth and the module of the first gear (815) and the second gear (816) are equal. The number of teeth and the module of the third gear (817) and the fourth gear (818) are equal.

4. The anti-interference two-channel static loading device according to claim 3, characterized in that: The balancing mechanism (8) includes two sets of linkage components (81), and two intermediate connecting rods (7) are provided. The two intermediate connecting rods (7) are parallel to and aligned with each other, and the telescopic rod (82) is located between the two intermediate connecting rods (7); Each set of the linkage assembly (81) includes a first balancing link (811), a second balancing link (812), a third balancing link (813), a fourth balancing link (814), a first gear (815), a second gear (816), a third gear (817), a fourth gear (818), a first stabilizing link (83), and a second stabilizing link (84); The rotating shafts of the two first gears (815), the rotating shafts of the two second gears (816), the rotating shafts of the two third gears (817), and the rotating shafts of the two fourth gears (818) of the two sets of the linkage assemblies (81) are fixedly connected via connecting shafts (85); The telescopic rod (82) is located between the two sets of linkage components (81).

5. The anti-interference two-channel static loading device according to claim 1, characterized in that: The second balancing lever (3) is provided with a second driving mechanism (32) for driving the second slider (31) to slide along the length direction of the second balancing lever (3).

6. The anti-interference two-channel static loading device according to claim 5, characterized in that: The first drive mechanism (22) and the second drive mechanism (32) are both pneumatic actuators or hydraulic actuators; the front chambers of the first drive mechanism (22) and the second drive mechanism (32) are connected to the same medium delivery pipe (91) through a pipe (9); and the rear chambers of the first drive mechanism (22) and the second drive mechanism (32) are connected to the same medium delivery pipe (91) through a pipe (9).

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