Multifunctional test device for actuating mechanism

Abstract

The utility model provides a multifunctional test device for an actuating mechanism, and the device comprises a test bench, the surface of the test bench is provided with at least two function test regions, and the two function test regions are correspondingly provided with an electromagnetic actuating mechanism and a permanent magnet actuating mechanism; the supporting frame is arranged on the test bed and is close to the flange end of the execution mechanism, and a measuring bracket is arranged on the supporting frame; the measuring sensor is connected with the measuring support through a fixing block, and the distance between the fixing block and the measuring support is adjustable; the test block is arranged at the flange end of the execution mechanism; and the actuating mechanism is controlled to act to drive the test block to be in contact with the measurement sensor so as to perform the function test of the closing retention force of the actuating mechanism. According to the invention, function test and service life test of the execution mechanism can be completed, and the product qualification rate can be detected, so that the production requirements can be met.

Description

Technical Field

[0001] This application belongs to the field of testing technology for switch products, and in particular relates to a multifunctional testing device for actuators. Background Technology

[0002] Permanent magnet actuators and electromagnetic actuators are commonly used operating mechanisms in circuit breakers. The holding force of the actuator in the closed state is a key parameter for the commissioning of the entire operating mechanism. However, there is a lack of effective means to measure the holding force of the actuator in the closed state, making it impossible to guarantee that the holding force meets the design requirements. In addition, there is a lack of effective measurement methods for mechanical life testing of actuators on the market, making it impossible to accurately verify the life limit of the actuator. Utility Model Content

[0003] In view of this, the present application aims to provide a multifunctional test apparatus for actuators to solve at least one of the above-mentioned problems.

[0004] To achieve the above objectives, the technical solution of this application is implemented as follows:

[0005] This application provides a multifunctional testing and experimental apparatus for actuators, comprising:

[0006] The test bench has at least two functional test areas on its surface, wherein an electromagnetic actuator and a permanent magnet actuator are respectively provided in the two functional test areas.

[0007] A support frame is provided on the test bench and near the flange end of the actuator, and a measuring bracket is provided on the support frame;

[0008] A measuring sensor is provided, which is connected to the measuring bracket via a fixing block, and the distance between the fixing block and the measuring bracket is adjustable.

[0009] A test block, wherein the test block is disposed at the flange end of the actuator;

[0010] The actuator is controlled to move, causing the test block to contact the measuring sensor, in order to perform a functional test of the actuator's closing and holding force.

[0011] Furthermore, the electromagnetic actuator and the permanent magnet actuator are mounted on the test bench via a support bracket, and the support bracket is also provided with a support block for supporting the actuator;

[0012] The support bracket has countersunk holes for the test block to pass through.

[0013] Furthermore, the fixing block is fixedly connected to the measuring bracket by fasteners, and a gap shim is provided between the fixing block and the measuring bracket to adjust the gap between the measuring sensor and the test block.

[0014] Furthermore, a scale line is provided on one side of the measuring bracket.

[0015] Furthermore, the measuring sensor is a proximity switch sensor, which is disposed on the side wall of the fixed block near the test block.

[0016] Furthermore, the gap distance between the test block and the measuring sensor is measured using a measuring fixture block.

[0017] Furthermore, it also includes a pad and a counting sensor. The pad is fixedly connected to the measuring bracket by fasteners, and a gap shim is provided between the pad and the measuring bracket. The counting sensor is mounted on the support bracket by a connecting bracket, and the counting sensor is connected to a display to display counting data.

[0018] The actuator is controlled to move, causing the test block to collide with the pad block. The number of times the actuator outputs is measured by the counting sensor to perform a life function test on the actuator.

[0019] Compared with the prior art, the multifunctional testing and experimental device for actuators described in this application has the following advantages:

[0020] The multifunctional testing device for actuators described in this application can quickly and easily complete functional and life tests on actuators, effectively verifying the pass rate of switch products and thus meeting production needs. At the same time, the components of the device are easy to replace and maintain, enabling cyclic testing of actuators. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0022] Figure 1 This is a schematic diagram of the structure of a multifunctional testing and experimental device for an actuator as described in an embodiment of this application;

[0023] Figure 2 This is a front view of a multifunctional testing and experimental device for an actuator as described in an embodiment of this application;

[0024] Figure 3 This is a schematic diagram showing some detailed structural features of a multifunctional testing and experimental device for an actuator as described in an embodiment of this application;

[0025] Figure 4 This is a schematic diagram showing some detailed structural features of the electromagnetic actuator described in the embodiments of this application;

[0026] Figure 5 This is a schematic diagram showing some details of the permanent magnet actuator described in an embodiment of this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1-Test bench; 2-Electromagnetic actuator; 3-Permanent magnet actuator; 4-Support frame; 5-Measuring bracket; 6-Measuring sensor; 7-Fixing block; 8-Test block; 9-Support bracket; 10-Gap shim; 11-Measuring tooling block; 12-Padded block; 13-Counting sensor; 14-Connecting bracket; 15-Display; 16-Lifting block. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0030] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in the embodiments of this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, but does not exclude other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can refer to any connection.

[0031] This includes electrical connections, whether direct or indirect. Terms like "up," "down," "left," and "right" are used only to indicate relative positional relationships; these relative relationships may change if the absolute position of the object being described changes.

[0032] Please see Figures 1 to 3 As shown, this embodiment provides a multifunctional testing and experimental device for actuators, including:

[0033] Test bench 1, the test bench 1 is provided with at least two functional test areas, wherein electromagnetic actuator 2 and permanent magnet actuator 3 are respectively provided in the two functional test areas;

[0034] Support frame 4 is set on test bench 1 and close to the flange end of actuator. Measuring bracket 5 is set on support frame 4.

[0035] The measuring sensor 6 is connected to the measuring bracket 5 via a fixing block 7, and the distance between the fixing block 7 and the measuring bracket 5 is adjustable.

[0036] Test block 8 is located at the flange end of the actuator;

[0037] The actuator is controlled to move, causing the test block 8 to contact the measuring sensor 6, in order to perform a functional test of the actuator's closing holding force.

[0038] Specifically, in this embodiment, the test bench 1 is a movable and lockable workbench (the bottom corners are designed with casters with locking function). Two level rulers are embedded on the workbench surface to facilitate adjustment of the overall levelness. The height of the workbench is moderate, which facilitates installation, disassembly and maintenance. The area above the workbench is the test area of ​​the actuator, and the area below the workbench is the storage area for materials. The test bench 1 is easy to transport, easy to fix and easy to operate. It has a simple structure and is safe and effective.

[0039] In this embodiment, two functional test areas are used to install permanent magnet actuator 3 and electromagnetic actuator 2, respectively. The difference is that the height of the actuator and the position of the fixing bolt of the actuator are different. The one with a circular shape is electromagnetic actuator 2, and the one with a square shape is permanent magnet actuator. This test device can test the two actuators at the same time.

[0040] The actuators are divided into electromagnetic actuators 2 and permanent magnet actuators 3. The driving principle of the two is basically the same, that is, when the coil inside the actuator is energized, the magnetic field generated by the current produces an attractive force between the moving iron core and the stationary iron core. This attractive force drives the transmission shaft to move. The difference is that the electromagnetic mechanism can reset the transmission shaft by simply cutting off the power through the internal reset spring, while the permanent magnet mechanism needs to add a reverse electromotive force at both ends of the coil to achieve reset.

[0041] The main function of the actuator is to provide the power for closing operations of switch products. This power can provide a power source for moving parts, and can also provide a continuous thrust for stable closing, ensuring that the holding force in the closed state meets the design requirements.

[0042] This application controls the action of the actuator to drive the test block 8 to contact the measuring sensor 6 in order to perform a functional test of the actuator's closing holding force (i.e., the relationship between the output force value and the transmission stroke, and the closing holding force). This solves the problem of cumbersome and complicated product inspection and low work efficiency when testing the closing force of existing actuators.

[0043] The multifunctional testing device for actuators described in this embodiment can quickly and easily complete functional and life tests on actuators, effectively verifying the pass rate of switch products and thus meeting production needs. At the same time, the components of the device are easy to replace and maintain, enabling cyclic testing of actuators.

[0044] In some implementations, such as Figure 4 and Figure 5 Electromagnetic actuator 2 and permanent magnet actuator 3 are mounted on the test bench 1 via support bracket 9. Support bracket 9 is also provided with support blocks for supporting the actuators.

[0045] The support bracket 9 has a countersunk hole for the test block 8 to pass through.

[0046] Specifically, in this embodiment, the actuator is first effectively assembled with the test block 8, and then installed on the support bracket 9 (the support bracket 9 is installed on the workbench of the test bench 1 by four bolts). During installation, the lifting block 16 is used to support it, so as to achieve the purpose of effortless installation.

[0047] It should be noted that the lifting block 16 can be placed or fixed on the support bracket 9 to support the actuator for a long time, or the lifting block 16 can be removed after the actuator is installed and fixed.

[0048] In some embodiments, as shown in Figure 5, the fixing block 7 is fixedly connected to the measuring bracket 5 by fasteners. A gap shim 10 is provided between the fixing block 7 and the measuring bracket 5 to adjust the gap between the measuring sensor 6 and the test block 8. A scale line is provided on one side of the measuring bracket 5 (scale line markings are shown in Figure 5). Figure 1 and Figure 3 (as shown)

[0049] The gap distance between the test block 8 and the measuring sensor 6 is measured by the measuring fixture block 11.

[0050] Specifically, in this embodiment, the measuring sensor 6 is installed and the distance is adjusted: a support frame 4 is installed on the test bench 1 (the support frame 4 is installed on the workbench surface of the test bench 1 by four bolts), and a measuring bracket 5 is installed on the support frame 4. At the same time, the measuring sensor 6 is installed on the fixing block 7, and a "W"-shaped gap shim 10 is added between the fixing block 7 and the measuring bracket 5.

[0051] It should be noted that, for fine adjustment, the gap shims 10 are designed with different thicknesses, including 5mm, 2mm, 1mm, 0.5mm, 0.2mm and 0.1mm, to adjust the gap between the measuring sensor 6 and the test block 8. This gap can be detected by the measuring fixture block 11 (the measuring fixture block 11 is machined to a specified thickness).

[0052] When power is supplied to the actuator, the output shaft of the actuator moves the test block 8 toward the measuring sensor 6. When the test block 8 (in this embodiment, the test block 8 is made of stainless steel and is machined) and the measuring sensor 6 (in this embodiment, the sensor is a Lockheed M8 proximity switch sensor, which is an 8mm three-wire 24V metal inductor type, specifically model I1 / I2B0804N001236) are in stable contact, the measuring sensor 6 can be read, thereby completing the test of the closing holding force.

[0053] When the type or quantity of gap shims 10 is increased or decreased, the distance between the test block 8 and the measuring sensor 6 is changed. At this time, the distance change between the two can be read according to the scale on the base plate of the measuring bracket 5, and then the closing holding force test is performed. In this way, the relationship between the output force value and the transmission stroke can be summarized.

[0054] In some embodiments, a pad 12 and a counting sensor 13 are also included. The pad 12 is fixedly connected to the measuring bracket 5 by fasteners. A gap shim 10 is provided between the pad 12 and the measuring bracket 5. The counting sensor 13 is mounted on the support bracket 9 by a connecting bracket 14. The counting sensor 13 is connected to a display 15 to display counting data.

[0055] The actuator is controlled to move, causing the test block 8 to collide with the pad block 12. The number of times the actuator outputs is measured by the counting sensor 13 to perform a life function test on the actuator.

[0056] Specifically, in this embodiment, when it is necessary to perform a life test verification on the actuator, the measuring sensor 6 needs to be removed and replaced with a more impact-resistant pad 12. At the same time, a counting sensor 13 is installed on the support bracket 9 to measure the number of times the actuator outputs, and then the counting signal is uploaded to the display 15 of the control box.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

[0058] The embodiments of this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of this application should be included within the protection scope of this application.

Claims

1. A multifunctional testing and experimental device for actuators, characterized in that, The utility model relates to a kind of multi-functional test test device of execution mechanism, including: Test bench, at least two functional test areas are provided on the test bench table top, wherein, two The functional test area is correspondingly provided with electromagnetic actuator and permanent magnet actuator; Support frame, the support frame is arranged on the test bench, and is close to the flange end of actuator, and measuring support is arranged on the support frame; Measuring sensor, the measuring sensor is connected with the measuring support by fixing block, and the spacing between the fixing block and the measuring support is adjustable; Test block, the test block is arranged on the flange end of actuator; Control actuator action, drive the test block and the measuring sensor contact, to carry out the function test of execution mechanism closing and holding force.

2. The multi-functional test test device of execution mechanism according to claim 1, wherein: The electromagnetic actuator and the permanent magnet actuator are installed on the table top of the test bench through the supporting bracket, and the supporting bracket is further provided with a lifting block for lifting the actuator; A counterbore is formed in the supporting bracket for the test block to pass through.

3. The multi-functional test test device of execution mechanism according to claim 1, wherein: The fixing block is fixedly connected with the measuring support by fasteners, and a gap spacer is arranged between the fixing block and the measuring support for adjusting the gap between the measuring sensor and the test block.

4. The multi-functional test test device of execution mechanism according to claim 3, wherein: One side of the measuring support is provided with a scale line.

5. The multi-functional test test device of execution mechanism according to claim 1, wherein: The measuring sensor is a proximity switch sensor, which is arranged on the side wall of the fixing block close to the test block.

6. The multi-functional test test device of execution mechanism according to claim 1, wherein: The gap distance between the test block and the measuring sensor is measured by a measuring tool block.

7. The multi-functional test test device of execution mechanism according to claim 2, further comprising a spacer and a counting sensor, wherein: The spacer is fixedly connected with the measuring support by fasteners, and a gap spacer is arranged between the spacer and the measuring support, and the counting sensor is installed on the supporting bracket through a connecting bracket, and the counting sensor is connected with a display to display counting data; Control actuator action, drive the test block to collide with the spacer, and measure the output times of the execution mechanism by the counting sensor to perform the life function test of the execution mechanism.

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