A load testing device for electric actuator

Abstract

The invention discloses a load testing device for an electric actuator, which relates to the technical field of electric actuator testing, and comprises a working component, wherein the working component comprises a workbench and a control panel installed on the workbench; a testing component, wherein the testing component comprises an electric actuator body and a mounting plate arranged on one side of the electric actuator body, one end of the electric actuator body is connected to a testing rod assembly, and one side of the conversion adjustment assembly is connected to a first testing assembly; the conversion adjustment assembly comprises an adjusting mounting block and a first engaging member installed inside the adjusting mounting block, an intermediate transmission member is connected to the outer side of the first engaging member, an intermediate adjusting rod is arranged on one side of the active adjusting member, and a testing pressure rod is connected to the outer side of the adjusting mounting block; the problem that some existing electric actuators cannot meet the testing requirements of linear motion and rotational motion at the same time, the operation complexity is increased, and it is inconvenient to carry out testing work is solved.

Description

Technical Field

[0001] The invention relates to the technical field of electric actuator testing, and in particular to a load testing device for an electric actuator. Background Art

[0002] Electric actuators are devices that convert electrical energy into mechanical energy and are widely used in industrial automation, aerospace, robotics and other fields. They are usually composed of motors, transmission mechanisms and control circuits, and can achieve precise position control, speed regulation and torque output. During the design and manufacturing process, load testing of electric actuators is a key step to ensure their performance and reliability.

[0003] The purpose of load testing is to simulate various load conditions that electric actuators may encounter in actual work, including static load, dynamic load, impact load, etc. Through these tests, key performance indicators such as the actuator's load capacity, response speed, stability, durability, etc. can be evaluated; load testing of electric actuators is an important part of ensuring their performance and reliability. Although professional test devices can provide accurate and repeatable test results, their high cost, operational complexity and maintenance difficulty are also factors that need to be considered.

[0004] Electric actuators have two types of motion, linear motion and rotational motion. For these two different motions, existing test devices are usually unable to simultaneously handle two different types of tests when performing load tests, which increases the cost of using the device and makes it more difficult to use the device, making it inconvenient for staff to perform testing. Summary of the invention

[0005] Some simplifications or omissions may be made in this section and the abstract and title of the present application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0006] In view of the above-mentioned problems that some existing electric actuators cannot simultaneously meet the testing requirements of linear motion and rotational motion, the operation complexity is increased, and it is inconvenient to perform testing work, the present invention is proposed.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: A load testing device for an electric actuator comprises a working component, wherein the working component comprises a workbench and a control panel installed on the workbench;

[0008] A test component, the test component includes an electric actuator body and a mounting plate arranged on one side of the electric actuator body, one end of the electric actuator body is connected to a test rod assembly, and a conversion adjustment assembly is installed on the outside of the test rod assembly, one side of the conversion adjustment assembly is connected to a first test assembly, and one side of the first test assembly is provided with a second test assembly.

[0009] As a preferred solution of the load testing device for the electric actuator of the present invention, the test rod assembly includes a test rod body and a first annular tooth provided on the test rod body.

[0010] As a preferred solution of the load testing device of the electric actuator described in the present invention, wherein: the conversion adjustment component includes an adjustment mounting block and a first engaging member installed inside the adjustment mounting block, the outer side of the first engaging member is connected to an intermediate transmission member, and the outer side of the intermediate transmission member is connected to an active adjustment member, an intermediate adjustment rod is provided on one side of the active adjustment member, and the other side of the intermediate adjustment rod is connected to a second engaging member, and the outer side of the adjustment mounting block is connected to a test pressure rod.

[0011] As a preferred solution of the load testing device of the electric actuator described in the present invention, the adjusting mounting block includes a mounting block body and a mounting cavity opened inside the mounting block body, a limiting slide groove is opened on the outer side of the mounting block body, and an adjusting thread is arranged on the outer side of the mounting block body.

[0012] As a preferred solution of the load testing device of the electric actuator described in the present invention, the first engaging member includes an adjusting cam and a first engaging block connected to one side of the adjusting cam, an arc groove is provided on one side of the first engaging block, and a first engaging tooth is connected to the other side of the first engaging block, and a first limiting slider is connected to the outer side of the adjusting cam.

[0013] As a preferred solution of the load testing device of the electric actuator described in the present invention, the intermediate transmission member includes a transmission connecting ring and a movable slide rod connected to the outside of the transmission connecting ring, the inner side of the transmission connecting ring is connected to a transmission gear block, and the inner side of the transmission connecting ring is provided with a second limiting slide block.

[0014] As a preferred solution of the load testing device for the electric actuator of the present invention, the active adjusting member comprises an active adjusting ring and a connecting slide groove connected to the inner side of the active adjusting ring.

[0015] As a preferred solution of the load testing device for the electric actuator of the present invention, the longitudinal section of the middle adjustment rod is in an "L" shape, and an inclined surface structure is provided on one side of the middle adjustment rod.

[0016] As a preferred solution of the load testing device of the electric actuator described in the present invention, the second engaging member includes a second engaging block and a second engaging tooth connected to one side of the second engaging block, and the other side of the second engaging block is connected to a limiting connecting rod, a matching inclined groove is provided inside the second engaging block, and a reset spring is provided on the outside of the limiting connecting rod.

[0017] As a preferred solution of the load testing device for the electric actuator of the present invention, the first testing assembly includes a testing mounting platform and a second annular gear connected to the inner side of the testing mounting platform, and a load tester is installed on the testing mounting platform.

[0018] The beneficial effects of the present invention are as follows: by providing a test component, the first test component and the second test component are used to measure two different forms of linear motion and rotational motion of the electric actuator body respectively; at the same time, when measuring, the current state of the electric actuator body under different loads is monitored through the control panel, and the stability of the electric actuator body is detected by the current state under these conditions. At the same time, the load condition of the electric actuator body can also be measured, thereby improving the safety and performance of the electric actuator body when in use.

[0019] By providing a conversion adjustment component, the limiting condition of the first engaging member on the test rod body can be adjusted according to the different position states of the active adjusting member on the adjusting mounting block. When the first engaging member is engaged with the first annular tooth to limit the test rod body, the rotation of the test rod body can drive the adjusting mounting block and the test pressure rod connected to the adjusting mounting block to move, and then the load of the rotational action of the electric actuator body is tested through the first test component; when the first engaging member does not limit the test rod body, the test rod body can move linearly inside the adjusting mounting block, and the second test component can be used to test the load of the linear action of the electric actuator body. At the same time, due to the movement of the adjusting mounting block, the middle adjusting rod is moved and the second engaging member is engaged with the second annular tooth to complete the limiting fixation of the adjusting mounting block, thereby preventing the adjusting mounting block from rotating during the linear action test and interfering with the test, so that the load test result of the linear action of the electric actuator body is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the cross-sectional structure of the conversion and adjustment component in the present invention.

[0023] Figure 3 for Figure 2 Enlarged structural diagram at A in the middle.

[0024] Figure 4 for Figure 2 Enlarged structural diagram at B in the middle.

[0025] Figure 5 It is a schematic diagram of the exploded structure between the adjusting mounting block, the intermediate transmission member and the active adjusting member in the present invention.

[0026] Figure 6 It is a schematic cross-sectional structure diagram of the first engaging member in the present invention.

[0027] Figure 7 It is a schematic diagram of the cross-sectional structure of the first test component in the present invention.

[0028] Figure 8 for Figure 7 Enlarged structural diagram at point C in the middle.

[0029] In the figure: 10, working part; 11, workbench; 12, control panel; 20, test part; 21, electric actuator body; 22, mounting plate; 23, test rod assembly; 231, test rod body; 232, first annular tooth; 24, conversion adjustment assembly; 241, adjustment mounting block; 2411, mounting block body; 2412, mounting cavity; 2413, limit slide groove; 2414, adjustment thread; 242, first engaging member; 2421, adjustment cam; 2422, first engaging block; 2423, arc groove; 2424, first engaging tooth; 2425, first limit slide block; 243, middle 2431, transmission connecting ring; 2432, movable slide rod; 2433, transmission gear block; 2434, second limit slider; 244, active adjustment member; 2441, active adjustment ring; 2442, connecting slide groove; 245, intermediate adjustment rod; 246, second engaging member; 2461, second engaging block; 2462, second engaging tooth; 2463, matching inclined groove; 2464, limit connecting rod; 2465, reset spring; 247, test pressure rod; 25, first test assembly; 251, test mounting platform; 252, second annular tooth; 253, load tester; 26, second test assembly. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] Example 1

[0033] Reference Figure 1~Figure 2 , which is the first embodiment of the present invention, provides a load test device for an electric actuator, including a working component 10, the working component 10 includes a workbench 11 and a control panel 12 installed on the workbench 11, wherein the control panel 12 is installed on the upper side of the workbench 11, and the control panel 12 is connected to the test component 20 by a line, so that the control panel 12 can control the load test condition in the test component 20, and the test condition of the test component 20 is fed back to the control panel 12 in real time, so that the test personnel can observe the test results in real time, and store and process the test data;

[0034] The test component 20 includes an electric actuator body 21 and a mounting plate 22 arranged on one side of the electric actuator body 21, a test rod assembly 23 is connected to one end of the electric actuator body 21, and a conversion adjustment assembly 24 is installed on the outer side of the test rod assembly 23, a first test assembly 25 is connected to one side of the conversion adjustment assembly 24, and a second test assembly 26 is arranged on one side of the first test assembly 25, wherein the electric actuator body 21 and the test rod assembly 23 are fixedly connected by bolts, during testing, the electric actuator body 21 is fixed to the upper side of the workbench 11, and the test rod assembly 23 is limitedly installed inside the mounting plate 22, so that the test rod assembly 23 can move linearly and rotate inside the mounting plate 22; the conversion adjustment assembly 24 is installed on one side of the first test assembly 25, and the conversion adjustment assembly 24 can rotate on the first test assembly 25, and the test rod assembly 23 can move linearly inside the conversion adjustment assembly 24, and can also be limitedly connected with the conversion adjustment assembly 24 to drive the conversion adjustment assembly 24 to rotate.

[0035] The first test assembly 25 includes a test mounting table 251 and a second annular tooth 252 connected to the inner side of the test mounting table 251, and a load tester 253 is installed on the test mounting table 251, wherein the second annular tooth 252 is arranged inside the test mounting table 251, and can be engaged or separated between the conversion adjustment assembly 24. At the same time, since the test mounting table 251 is fixedly installed on the upper side of the workbench 11, the test mounting table 251 can limit the position of the conversion adjustment assembly 24; through the load tester 253 set on the test mounting table 251, when the conversion adjustment assembly 24 rotates, it will touch the load tester 253, so that the load tester 253 detects the torque to test the load condition of the electric actuator body 21, and transmits the data results to the control panel 12 for processing and storage.

[0036] During operation, the state of the conversion adjustment component 24 is changed by rotating the conversion adjustment component 24, so that the conversion adjustment component 24 can be in two states of limited connection or separation with the test rod component 23, so that the device can perform load tests on the two working modes of linear action and rotational action of the electric actuator body 21. At the same time, the test results are transmitted to the control panel 12, so that the test personnel can observe the test situation in real time, and the test data can be processed and stored in real time, so as to improve the accuracy of the load test of the electric actuator body 21 and improve the efficiency of the test.

[0037] Example 2

[0038] Reference Figure 2~Figure 8 , which is the second embodiment of the present invention. Based on the embodiment 1, this embodiment is further improved in that: the test rod assembly 23 includes a test rod body 231 and a first annular tooth 232 opened on the test rod body 231, wherein the test rod body 231 is provided with steps through different diameters, and the test rod body 231 is provided with a spring inside the mounting plate 22, so that when the test rod body 231 is not performing a working test, the test rod body 231 is in a reset position, ensuring that the test rod body 231 can be limitedly engaged with the conversion adjustment assembly 24, thereby preventing the test rod assembly 23 and the conversion adjustment assembly 24 from being unable to engage with each other.

[0039] The conversion adjustment component 24 includes an adjustment mounting block 241 and a first engaging member 242 installed inside the adjustment mounting block 241, an intermediate transmission member 243 is connected to the outer side of the first engaging member 242, and an active adjustment member 244 is connected to the outer side of the intermediate transmission member 243, an intermediate adjustment rod 245 is provided on one side of the active adjustment member 244, and a second engaging member 246 is connected to the other side of the intermediate adjustment rod 245, and a test pressure rod 247 is connected to the outer side of the adjustment mounting block 241, wherein the adjustment mounting block 241 and the active adjustment member 244 are connected together in a threaded manner, so that the active adjustment member 244 can move on the adjustment mounting block 241, and at the same time, the intermediate transmission member 243 is sleeved inside the active adjustment member 244, so that when the active adjustment member 244 rotates, it can drive the intermediate transmission member 243 to rotate without causing the intermediate transmission member 24 3, so that the rotation of the intermediate transmission member 243 controls the movement of the first engaging member 242, so that the first engaging member 242 is limitedly engaged with the test rod body 231; the intermediate adjustment rod 245 and the second engaging member 246 are arranged inside the adjustment mounting block 241, and the movement of the intermediate adjustment rod 245 can drive the second engaging member 246 to move, so that the second engaging member 246 is limitedly engaged with the first test assembly 25 to control the rotation and fixation of the adjustment mounting block 241 inside the first test assembly 25, and at the same time, the test pressure rod 247 passes through the test mounting table 251 and is arranged on the inner side of the load tester 253, so that when the adjustment mounting block 241 rotates, it can drive the test pressure rod 247 to rotate and contact the load tester 253, and then complete the load test of the electric actuator body 21 through the load tester 253.

[0040] The adjusting mounting block 241 includes a mounting block body 2411 and a mounting cavity 2412 opened inside the mounting block body 2411, a limiting groove 2413 is opened on the outer side of the mounting block body 2411, and an adjusting thread 2414 is arranged on the outer side of the mounting block body 2411, wherein the mounting cavity 2412 and the limiting groove 2413 are arranged at equal angles with respect to the center of the mounting block body 2411, and the adjusting thread 2414 is arranged on the outer side of the mounting block body 2411 and is threadedly connected to the active adjusting member 244.

[0041] The first engaging member 242 includes an adjusting cam 2421 and a first engaging block 2422 connected to one side of the adjusting cam 2421. An arc groove 2423 is provided on one side of the first engaging block 2422, and a first engaging tooth 2424 is connected to the other side of the first engaging block 2422. A first limiting slider 2425 is connected to the outer side of the adjusting cam 2421. A tooth block structure is provided on one side of the adjusting cam 2421, and the adjusting cam 2421 is limitedly rotated inside the mounting block body 2411. At the same time, one side of the adjusting cam 2421 is The end is matched and connected with the arc groove 2423, so that the adjusting cam 2421 can push the first locking block 2422 to move, and the first locking tooth 2424 is engaged with the first annular tooth 232; the first limiting slider 2425 moves within the mounting block body 2411, and a spring is arranged on one side of the first limiting slider 2425, so that the spring can reset the position of the first locking block 2422, and the first locking block 2422 is arranged at equal angles with respect to the center of the mounting block body 2411.

[0042] The intermediate transmission member 243 includes a transmission connection ring 2431 and a movable slide bar 2432 connected to the outside of the transmission connection ring 2431, a transmission tooth block 2433 is connected to the inside of the transmission connection ring 2431, and a second limit slider 2434 is arranged on the inside of the transmission connection ring 2431, wherein the movable slide bar 2432, the transmission tooth block 2433 and the second limit slider 2434 are all arranged at equal angles with respect to the center of the transmission connection ring 2431, and the transmission tooth block 2433 is meshed with the tooth block structure on the adjusting cam 2421, so that when the transmission connection ring 2431 rotates, the adjusting cam 2421 can be driven to rotate, and at the same time, the second limit slider 2434 is arranged on the inside of the transmission connection ring 2431. The slider 2434 performs limited rotation inside the limited slide groove 2413; the active adjustment member 244 includes an active adjustment ring 2441 and a connecting slide groove 2442 connected to the inner side of the active adjustment ring 2441, wherein the active adjustment ring 2441 is threadedly connected to the adjustment thread 2414, so that the active adjustment ring 2441 performs limited movement on the mounting block body 2411, and at the same time, the connecting slide groove 2442 and the moving slide rod 2432 are mutually cooperated and connected, so that the moving slide rod 2432 performs limited sliding inside the connecting slide groove 2442, so that the active adjustment ring 2441 can drive the transmission connecting ring 2431 to rotate while rotating.

[0043] The second engaging member 246 includes a second engaging block 2461 and a second latching tooth 2462 connected to one side of the second engaging block 2461, and the other side of the second engaging block 2461 is connected to a limiting connecting rod 2464, a matching inclined groove 2463 is provided inside the second engaging block 2461, and a return spring 2465 is provided on the outer side of the limiting connecting rod 2464, wherein the second engaging block 2461 is arranged at an equal angle inside the mounting block body 2411, and the second engaging block 2461 can be limited and moved so that the second latching tooth 2462 is 2462 is engaged and separated with the second annular tooth 252, and the position of the second engaging block 2461 is reset by providing a reset spring 2465; since an inclined surface is provided on the side of the middle adjusting rod 245 close to the second engaging block 2461, and is cooperated with the matching bevel groove 2463, when the middle adjusting rod 245 moves, the second engaging block 2461 can be moved through the matching connection with the matching bevel groove 2463, and then engaged and fixed with the second annular tooth 252.

[0044] When a rotational motion test is required, the active adjustment ring 2441 is rotated to make the active adjustment ring 2441 located on the left side. At this time, the transmission connection ring 2431 is rotated by the matching connection between the connecting groove 2442 and the movable slide rod 2432, and then the adjustment cam 2421 is rotated by the meshing between the transmission gear block 2433 and the adjustment cam 2421, and the first engaging block 2422 is pushed to move, so that the first engaging tooth 2424 engages with the first annular tooth 232, and the engagement and fixation between the test rod body 231 and the adjustment mounting block 241 is completed, and then the load test of the electric actuator body 21 of the rotational motion can be carried out;

[0045] When a linear motion test is required, the active adjustment ring 2441 is rotated so that the active adjustment ring 2441 is located on the right side. At this time, the first engaging member 242 and the first annular tooth 232 are disengaged through the matching connection between the intermediate transmission member 243 and the active adjustment member 244, and the limit connection between the contact test rod body 231 and the adjustment mounting block 241 is realized. At the same time, the active adjustment ring 2441 pushes the intermediate adjustment rod 245 to move, and the connection between the intermediate adjustment rod 245 and the matching bevel groove 2463 is matched to move the second engaging block 2461 upward, thereby making the second engaging tooth 2462 and the second annular tooth 252 engage and limit and fix. After that, the load test of the electric actuator body 21 of the rotary motion can be completed.

[0046] The remaining structures are the same as those of Example 1.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A load test device for an electric actuator, characterized in that: include, A working component (10), the working component (10) comprising a working table (11) and a control panel (12) mounted on the working table (11); A test component (20), the test component (20) comprising an electric actuator body (21) and a mounting plate (22) arranged on one side of the electric actuator body (21), one end of the electric actuator body (21) being connected to a test rod assembly (23), and a conversion adjustment assembly (24) being installed on the outside of the test rod assembly (23), one side of the conversion adjustment assembly (24) being connected to a first test assembly (25), and one side of the first test assembly (25) being provided with a second test assembly (26); The conversion adjustment component (24) comprises an adjustment mounting block (241) and a first engaging member (242) mounted inside the adjustment mounting block (241); an outer side of the first engaging member (242) is connected to an intermediate transmission member (243); an outer side of the intermediate transmission member (243) is connected to an active adjustment member (244); an intermediate adjustment rod (245) is provided on one side of the active adjustment member (244); and a second engaging member (246) is connected to the other side of the intermediate adjustment rod (245); and a test pressure rod (247) is connected to the outer side of the adjustment mounting block (241); The adjustable mounting block (241) comprises a mounting block body (2411) and a mounting cavity (2412) provided inside the mounting block body (2411); a limiting sliding groove (2413) is provided on the outer side of the mounting block body (2411); and an adjusting thread (2414) is provided on the outer side of the mounting block body (2411); The first engaging member (242) comprises an adjusting cam (2421) and a first engaging block (2422) connected to one side of the adjusting cam (2421); an arc-shaped groove (2423) is provided on one side of the first engaging block (2422); and a first engaging tooth (2424) is connected to the other side of the first engaging block (2422); and a first limiting slider (2425) is connected to the outer side of the adjusting cam (2421); The intermediate transmission member (243) comprises a transmission connection ring (2431) and a movable slide bar (2432) connected to the outside of the transmission connection ring (2431); the inside of the transmission connection ring (2431) is connected to a transmission gear block (2433); and the inside of the transmission connection ring (2431) is provided with a second limiting slide block (2434); The active adjustment member (244) comprises an active adjustment ring (2441) and a connecting slide groove (2442) connected to the inner side of the active adjustment ring (2441); The longitudinal cross-section of the middle adjustment rod (245) is in an "L" shape, and an inclined surface structure is provided on one side of the middle adjustment rod (245); The second engaging member (246) comprises a second engaging block (2461) and a second engaging tooth (2462) connected to one side of the second engaging block (2461), and the other side of the second engaging block (2461) is connected to a limiting connecting rod (2464), a matching inclined groove (2463) is provided inside the second engaging block (2461), and a return spring (2465) is provided on the outside of the limiting connecting rod (2464); The first test assembly (25) comprises a test mounting platform (251) and a second annular tooth (252) connected to the inner side of the test mounting platform (251); a load tester (253) is mounted on the test mounting platform (251).

2. The load testing device for an electric actuator according to claim 1, characterized in that: The test rod assembly (23) comprises a test rod body (231) and a first annular tooth (232) provided on the test rod body (231).

Images