Actuator service life test bench

Abstract

An actuator service life test bench comprises a rack, a pressure arm and an assembly table are assembled on the rack, one end of the pressure arm is hinged to the rack, and the other end of the pressure arm is used for installing a load; a connecting base is assembled on the assembling table, one end of a to-be-detected actuator is hinged to the connecting base, and the other end of the to-be-detected actuator is hinged to the middle of the pressure arm. The structural design is optimized through the lever principle, the acting force generated by the load is amplified through the force arm ratio (the force arm length ratio of the load section to the connecting end) of the lever, the pressure actually borne by the actuator is far larger than the weight of the load, the weight of the load needed by the test is greatly reduced, and the test efficiency is improved. The labor intensity of manual carrying and load mounting is remarkably reduced, and the test efficiency and safety are effectively improved especially in a long-term repeated life test.

Description

Technical Field

[0001] This utility model belongs to the technical field of life testing equipment, specifically relating to an actuator life testing bench. Background Technology

[0002] In the field of life testing benches, existing technologies generally use direct loading to stress test actuators, and their shortcomings are mainly reflected in the following aspects:

[0003] 1. Excessive load weight requirement

[0004] Traditional test benches simulate the working pressure of actuators by directly applying static or dynamic loads, requiring the physical weight of the load to directly match the target pressure value. For example, to test an actuator under a continuous pressure of 10,000 N, a metal counterweight of approximately one ton is required. This "weight equivalence" design results in a large and heavy test load, which not only increases the load-bearing burden on the test equipment but also brings significant cost pressure in terms of space occupation and transportation and storage.

[0005] 2. Manual operation is physically demanding and poses safety hazards.

[0006] In long-term repetitive life testing, frequent load replacement or adjustment is a common requirement. Current technology requires operators to directly handle and disassemble heavy metal counterweights, resulting in extremely high labor intensity. Statistics show that a certain model of hydraulic actuator required over 80 load module replacements during a 2000-hour life test, with each load exceeding 500 kg, significantly increasing the risk of workplace injuries. Furthermore, installation errors with heavy loads can cause uneven loading of the equipment, posing a potential risk of damage to the test bench structure or distorted test data.

[0007] Therefore, based on some of the situations in the prior art described above, this application has made further designs and improvements. Utility Model Content

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution.

[0009] An actuator life test bench includes a frame, on which a pressure arm and an assembly table are mounted. One end of the pressure arm is hinged to the frame, and the other end is used to mount a load. A connecting seat is mounted on the assembly table. One end of the actuator to be tested is hinged to the connecting seat, and the other end is hinged to the middle of the pressure arm.

[0010] Furthermore, the relationship between the distance l from the connection end to the fixed end and the distance L from the load end to the fixed end is: l / L≤1 / 2.

[0011] Furthermore, a lifting device is mounted on the assembly table, and a connecting seat is installed on the lifting device.

[0012] Furthermore, the lifting device is a manual lifting device controlled by a handwheel.

[0013] Furthermore, a pressure sensor is installed on the connector.

[0014] Furthermore, the load is a weight plate, and the pressure arm is equipped with several hanging rods for mounting the weight plate.

[0015] Furthermore, the rack is also equipped with a housing for storing the load.

[0016] Furthermore, a display and control panel is installed on the enclosure.

[0017] Furthermore, casters are installed at the bottom of the frame.

[0018] Compared with the prior art, the actuator life test bench provided in this application has the following beneficial technical effects:

[0019] 1. By optimizing the structural design through the lever principle, the lever arm ratio (the ratio of the lever arm length of the load section to the connection end) is used to amplify the force generated by the load, so that the actual pressure borne by the actuator is much greater than the weight of the load itself. This significantly reduces the weight of the load required for the test and significantly reduces the labor intensity of manual handling and installation of the load. Especially in long-term repetitive life tests, it effectively improves the efficiency and safety of the test.

[0020] 2. The test bench features multiple hanging rods on the pressure arm, allowing for rapid addition or removal of weight plates as needed. Combined with the display and control panel, it enables digital monitoring of load parameters. Simultaneously, the pressure sensor integrated into the connector provides real-time feedback on the actuator's force data, ensuring that the actual loading pressure matches the theoretical calculation value and avoiding test deviations caused by lever efficiency loss or installation errors. Furthermore, the coordinated design of the manual lift and storage box facilitates quick adjustments and load return before and after testing.

[0021] 3. Utilizing a rack-mounted modular layout and casters for flexible movement, it is suitable for various laboratory or production line environments. The integrated design of the lifting device and housing saves space while ensuring the safety of load storage and operation. The overall structure reduces the requirements for the testing site while maintaining testing accuracy, making it particularly suitable for life assessment scenarios requiring frequent adjustments to test conditions. Attached Figure Description

[0022] Figure 1 Three-dimensional life test bench Figure 1 .

[0023] Figure 2 Three-dimensional life test bench Figure 2 .

[0024] Figure 3This is a plan view of the life test bench.

[0025] The following is an explanation of the reference numerals in the attached figures:

[0026] 100. Rack; 110. Display and control panel; 120. Cabinet; 130. Casters;

[0027] 200, pressure arm; 210, load; 220, hanging rod;

[0028] 300. Assembly table; 310. Lifter; 311. Connecting seat; 320. Actuator. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0030] In the following embodiments, the same or similar reference numerals denote the same or similar components or components with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0031] In the description of this utility model, it should be understood that the terms such as center, longitudinal, transverse, length, width, thickness, upper, lower, front, back, left, right, vertical, horizontal, top, bottom, inner, outer, clockwise, and counterclockwise, indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features shown. In the description of this utility model, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] Reference Figures 1 to 3An actuator life test bench includes a frame 100, on which a pressure arm 200 and an assembly table 300 are mounted. One end of the pressure arm 200 is hinged to the frame 100, and the other end is used to mount a load 210. A connecting seat 311 is mounted on the assembly table 300. One end of the actuator 320 to be tested is hinged to the connecting seat 311, and the other end is hinged to the middle of the pressure arm 200. The relationship between the distance l from the connecting end to the fixed end and the distance L from the load 210 end to the fixed end is: l / L ≤ 1 / 2. Under the same load 210, the smaller the ratio of l / L, the greater the pressure on the actuator 320. This application utilizes the lever arm ratio (the ratio of the lever arm length of the load 210 segment to the connecting end) to amplify the force generated by the load 210, making the actual pressure borne by the actuator 320 much greater than the weight of the load 210 itself. This significantly reduces the weight of the load 210 required for the test, and significantly reduces the labor intensity of manual handling and installation of the load 210. Especially in long-term repetitive life tests, it effectively improves test efficiency and safety.

[0033] Furthermore, a lifting device 310 is mounted on the assembly table 300, and a connecting seat 311 is installed on the lifting device 310. The lifting device 310 is a manual lifting device controlled by a handwheel. A pressure sensor is installed on the connecting seat 311. A display and control panel 110 is provided on the housing 120. The load 210 is a weight plate, and several hanging rods 220 for mounting the weight plate are provided on the pressure arm 200. The size of the load 210 can be adjusted by adding or removing weight plates hanging on the hanging rods 220. A housing 120 for storing the load 210 is also installed on the frame 100. The inside of the housing 120 is used to store unused weight plates, and a lid is used for safe storage. Casters 130 with braking function are provided at the four corners of the bottom of the frame 100 to facilitate the overall movement and positioning of the test bench. The test bench, with multiple hanging rods 220 on the pressure arm 200, supports the rapid addition or removal of weight plates as needed, and, together with the display and control panel 110, enables digital monitoring of the load 210 parameters. Simultaneously, the pressure sensor integrated into the connecting base 311 provides real-time feedback on the force data of the actuator 320, ensuring that the actual loading pressure matches the theoretical calculation value and avoiding test deviations caused by lever efficiency loss or installation errors. Furthermore, the coordinated design of the manual lift 310 and the storage box 120 facilitates quick adjustments before and after testing and the return of the load 210 to its original position.

[0034] During the experiment, the height of the connecting seat 311 is adjusted using the manual lifter 310, and the actuator 320 is installed on the frame 100. The weight plate is hung on the hanging rod 220 at the end of the pressure arm 200. The actual loading pressure is calibrated using pressure sensor data, and the display and control panel 110 displays the parameters simultaneously. During the test, the reciprocating motion of the actuator 320 drives the pressure arm 200 to swing, and its life performance is verified through long-term repeated loading. This structure utilizes the leverage amplification effect to reduce the load requirement 210. Combined with manual lifting and modular design, it achieves an efficient and safe testing environment. The integration of the display and control panel 110 and the storage box 120 optimizes the ease of operation and space utilization, and the caster 130 design enhances the adaptability of the test bench to different scenarios.

[0035] The scope of protection of this utility model includes, but is not limited to, the above embodiments. The scope of protection of this utility model is defined by the claims. Any substitutions, modifications, or improvements to this technology that are easily conceived by those skilled in the art shall fall within the scope of protection of this utility model.

Claims

1. An actuator life test bench, characterized by, The utility model relates to a kind of pressure testing device, including rack (100), rack (100) is equipped with pressure arm (200) and assembly platform (300), one end of pressure arm (200) is fixed end, hinged on rack (100), the other end is load (210) end, for installing load (210);Assembly platform (300) is equipped with connecting seat (311), the actuator (320) to be detected one end is connected end, hinged on connecting seat (311), the other end is hinged on pressure arm (200).

2. The actuator life test bench of claim 1, wherein, The distance l of connection end to fixed end and the distance L of load (210) end to fixed end satisfy the following relationship: l / L≤1 / 2.

3. The actuator life test bench of claim 1, wherein, Lifting device (310) is installed on assembly platform (300).

4. The actuator life test bench of claim 3, wherein, Lifting device (310) is manually operated lifting device (310) controlled by hand wheel.

5. The actuator life test bench of claim 1, wherein, Pressure sensor is installed on connecting seat (311).

6. The actuator life test bench of claim 1, wherein, Load (210) is weight piece, and a plurality of hanging rods (220) for installing weight piece are arranged on pressure arm (200).

7. The actuator life test bench of claim 1, wherein, Rack (100) is further provided with box (120) for accommodating load (210).

8. The actuator life test bench of claim 1, wherein, Box (120) is provided with display and control panel (110).

9. The actuator life test bench of claim 1, wherein, Rack (100) is provided with casters (130) at the bottom.

Images