Motor iron core drawing force detection device

Abstract

The utility model discloses a motor iron core drawing force detection device, and relates to the technical field of motor iron core detection, the motor iron core drawing force detection device comprises a bottom plate, the bottom plate is provided with a hollow placing table, a connecting disc is placed on the hollow placing table, a plurality of sliding grooves are formed in the side wall of the hollow placing table, and a first driving part is inversely arranged in the hollow placing table; a moving plate is arranged at the output end of the first driving part and provided with a stand column. Pressing plates are rotationally arranged at the ends, away from the movable plates, of the stand columns; a support is arranged on the bottom plate, a second driving part is arranged on the support and located above the hollow containing table, a tension meter is arranged at the output end of the second driving part and provided with a pulling plate, and a connecting plate is arranged on the bottom face of the pulling plate; the first driving piece is arranged to drive the moving plate to press downwards to drive the pressing plate to press the connecting disc and stabilize and fix the connecting disc, after the drawing test is completed, the connecting disc is taken out by rotating the pressing plate to be cleaned and reused or the lower wheel test is conducted by replacing the connecting disc, the connecting disc is convenient to clean, the hollow placing table is protected, and the test efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of motor core testing technology, and in particular to a device for testing the pull-out force of motor cores. Background Technology

[0002] Pull-out force testing of motor cores is an important means of measuring the bonding strength between the motor core and connected components. By accurately measuring the pull-out force of the motor core, potential problems that may lead to motor failure, such as core loosening or detachment, can be identified in advance, ensuring stable operation of the motor under long-term, high-intensity operating conditions. On the other hand, accurate pull-out force data can provide crucial quantitative references for optimized motor design and process improvement, helping motor manufacturers enhance product competitiveness.

[0003] In the existing technology, in the crucial step of fixing the motor core, the motor core is sometimes temporarily fixed by bonding or welding directly on a fixed placement platform.

[0004] Regarding the aforementioned technologies, the inventors believe that after the testing task is completed, the placement platform and the iron core are difficult to clean and separate, which can easily damage the placement platform. Utility Model Content

[0005] The purpose of this application is to provide a device for detecting the pull-out force of an electric motor core, so as to improve the problem that the placement platform and the core are difficult to separate and clean after the detection task is completed.

[0006] This application provides a device for detecting the pull-out force of motor cores, which adopts the following technical solution:

[0007] A device for detecting the pull-out force of an electric motor core includes a base plate with a hollow placement platform. A connecting plate for fixing the core is placed on the hollow placement platform. Several sliding grooves are arranged circumferentially along the vertical direction on the side wall of the hollow placement platform. A first driving component is inverted inside the hollow placement platform. A movable plate that slides along the sliding grooves is provided at the output end of the first driving component. A column is provided along the vertical direction on the movable plate. A pressure plate that can press against the connecting plate is rotatably provided at the end of the column away from the movable plate. A bracket is provided on the base plate. A second driving component is provided above the hollow placement platform on the bracket. A tension gauge is provided at the output end of the second driving component. The tension gauge is provided with a pull plate. A fixed connecting plate that is fixed to the upper surface of the core is provided on the bottom surface of the pull plate.

[0008] By adopting the above technical solution, a driving component is set to drive the moving plate to press down and drive the pressure plate to press the connecting plate, thus stabilizing and fixing the connecting plate. After the pull-out test is completed, the connecting plate can be removed by rotating the pressure plate for cleaning and reuse, or the connecting plate can be replaced for the next round of testing. This facilitates cleaning of the connecting plate, protects the hollow placement platform, and improves testing efficiency.

[0009] Optionally, the connecting plate is fitted to the hollow placement platform.

[0010] By adopting the above technical solution, it is helpful to position the connecting plate, so that the position of the connecting plate is consistent each time; at the same time, it helps to improve the stability of the connecting plate when it is placed on the hollow placement platform and reduce the detection error caused by shaking or displacement.

[0011] Optionally, the connecting plate is provided with several lifting plates around its circumference to facilitate lifting.

[0012] By adopting the above technical solution, when the connecting plate is removed for cleaning after the test, the lifting plate provides a convenient position for applying force, reducing the difficulty of operation and improving work efficiency.

[0013] Optionally, the lifting plate has a slot, and the hollow placement platform is provided with several insert plates corresponding to the slot.

[0014] By adopting the above technical solution, the position of the connecting plate on the hollow placement platform is consistent each time, which helps to improve the repeatability and accuracy of the test, and also prevents the connecting plate from sliding or rotating horizontally during the pulling process.

[0015] Optionally, the pressure plate is provided with an elastic pad that abuts against the connecting plate.

[0016] By adopting the above technical solution, the elastic pad avoids rigid contact between the pressure plate and the connecting plate, reducing damage to the surface of the connecting plate; on the other hand, the elastic pad can better adapt to the unevenness of the connecting plate surface, ensuring that the pressure plate can apply pressure evenly, making the connecting plate more firmly fixed.

[0017] Optionally, the connecting disc has several slots corresponding to the elastic pad.

[0018] By adopting the above technical solution, the slot allows the elastic pad to be embedded in it, further enhancing the fixing effect of the pressure plate on the connecting plate, increasing the friction and bonding force between the connecting plate and the pressure plate, and ensuring the stability of the testing process.

[0019] Optionally, the bracket is provided with telescopic rods at both ends of the driving component two, and the end of the telescopic rod away from the driving component two is connected to the pull plate.

[0020] By adopting the above technical solution, the telescopic rod plays a guiding and auxiliary supporting role, ensuring that the movement trajectory of the pull plate is more stable, reducing the tilting or swaying of the pull plate due to uneven force, thereby improving the accuracy of the force gauge measurement.

[0021] Optionally, the connecting plate is provided with a connecting rod that penetrates the pull plate, and a fixing nut is threaded to the end of the connecting rod away from the pull plate.

[0022] By adopting the above technical solution, the connecting plate can be fixed on the pull plate by tightening the fixing nut, ensuring that the pulling force can be effectively transmitted to the motor core. After the test is completed, the connecting plate can be easily removed by loosening the fixing nut, which facilitates subsequent cleaning and replacement operations.

[0023] In summary, this application includes at least one of the following beneficial technical effects of the motor core pull-out force detection device:

[0024] 1. By setting a driving component to drive the moving plate to press down and drive the pressure plate to press the connecting plate, the connecting plate is stably fixed. After the pull-out test is completed, the connecting plate can be removed by rotating the pressure plate for cleaning and reuse, or the connecting plate can be replaced for the next round of testing. This facilitates cleaning of the connecting plate, protects the hollow placement platform, and improves testing efficiency.

[0025] 2. Ensuring that the connecting plate is placed in the same position on the hollow placement platform each time helps improve the repeatability and accuracy of the test, and also prevents the connecting plate from sliding or rotating horizontally during the pulling process;

[0026] 3. By tightening the fixing nut, the connecting plate can be fixed on the pull plate, ensuring that the pulling force can be effectively transmitted to the motor core. After the test is completed, the connecting plate can be easily removed by loosening the fixing nut, which facilitates subsequent cleaning and replacement operations. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the motor core pull-out force detection device;

[0028] Figure 2 This is a schematic diagram illustrating the movable plate structure in the embodiment.

[0029] In the diagram, 1. Base plate; 2. Hollow placement platform; 21. Insert plate; 22. Slide groove; 3. Connecting plate; 31. Lifting plate; 311. Slot; 32. Card slot; 4. Drive component one; 41. Moving plate; 42. Column; 43. Pressure plate; 431. Elastic pad; 5. Bracket; 6. Drive component two; 61. Tension gauge; 62. Pull plate; 63. Connecting plate; 631. Connecting rod; 632. Fixing nut; 7. Telescopic rod. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 - Appendix Figure 2 This application will be described in further detail below.

[0031] A device for detecting the pull-out force of an electric motor core, referring to Figure 1The system includes a base plate 1, which is horizontally placed and can be made of steel plate. The base plate 1 is integrally formed with a hollow placement platform 2, which protrudes upward perpendicular to the base plate 1. A connecting plate 3 for fixing iron core is placed on the top plane of the hollow placement platform 2. The connecting plate 3 is horizontally placed on the hollow placement platform 2 and is fitted to the hollow placement platform 2. The mating surfaces of the two are relatively flat and smooth. The connecting plate 3 can be made of wear-resistant material.

[0032] Reference Figure 1 The connecting plate 3 is evenly provided with several lifting plates 31 for easy lifting. In this embodiment, three are preferred. The lifting plates 31 and the connecting plate 3 can be an integral structure. The lifting plates 31 are provided with slots 311. The slots 311 are provided through the thickness direction of the lifting plates 31. The hollow placement platform 2 is provided with several insert plates 21 corresponding to the slots 311. The insert plates 21 and the hollow placement platform 2 can be an integral structure. The insert plates 21 can be tightly inserted into the slots 311, thereby playing a preliminary positioning and limiting role for the connecting plate 3 in the horizontal direction.

[0033] Reference Figure 1 , Figure 2 The hollow placement platform 2 has a number of grooves 22 evenly arranged around its side wall in the vertical direction. In this embodiment, six grooves are preferred. The grooves 22 are vertical strips. A drive component 4 is invertedly arranged inside the hollow placement platform 2. The drive component 4 can be a hydraulic cylinder or an electric push rod. Its bottom is fixed to the inner bottom surface of the hollow placement platform 2 by bolt and nut assembly. A movable plate 41 that slides along the groove 22 is welded to the output end of the drive component 4. The outer wall of the movable plate 41 is in contact with the inner wall of the groove 22 and the two are slidably connected. A column 42 is welded to the movable plate 41 in the vertical direction.

[0034] Reference Figure 1 The end of the column 42 away from the moving plate 41 is provided with a pressure plate 43 that can press against the connecting plate 3 via a pin. The pressure plate 43 can rotate around the pin. The pressure plate 43 is provided with an elastic pad 431 that abuts against the connecting plate 3. The elastic pad 431 can be made of rubber and is attached to the lower surface of the pressure plate 43 with strong glue. The connecting plate 3 has several slots 32 corresponding to the elastic pad 431. The slots 32 are concave and the elastic pad 431 can be tightly embedded in the slots 32.

[0035] Reference Figure 1 A bracket 5 is vertically welded to the edge of the base plate 1 away from the hollow placement platform 2. The bracket 5 is a vertical metal structure. A second drive component 6 is set above the hollow placement platform 2. The second drive component 6 can also be a hydraulic cylinder or an electric push rod. One end of the drive component 6 is fixed to the crossbar of the bracket 5 by a bolt and nut assembly. A tension gauge 61 is welded to the output end of the second drive component 6. The tension gauge 61 is used to accurately measure the magnitude of the pulling force.

[0036] Reference Figure 1 The tension gauge 61 is fixed to the output end of the drive component 6 by welding. The tension gauge 61 is bolted to a pull plate 62. The bracket 5 is symmetrically provided with telescopic rods 7 at both ends of the drive component 6. The telescopic rod 7 includes a cylindrical part welded to the bracket 5 and a rod that is slidably inserted into the cylindrical part. The rod can slide smoothly up and down in the cylindrical part. The part of the rod away from the bracket 5 is welded to the pull plate 62. The telescopic rod 7 can play an auxiliary support and guiding role when the pull plate 62 moves up and down.

[0037] Reference Figure 1 A connecting plate 63 is provided on the bottom surface of the pull plate 62. The connecting plate 63 is in a horizontal state and is fixed to the top surface of the motor core by bonding or welding. The connecting plate 63 is provided with a connecting rod 631 that passes through the pull plate 62. The connecting rod 631 and the connecting plate 63 can be an integral structure. The connecting rod 631 passes vertically upward through the pull plate 62. The end of the connecting rod 631 away from the pull plate 62 is threaded with a fixing nut 632.

[0038] The implementation principle of this application embodiment is as follows:

[0039] In actual use, the motor core is first placed on the connecting plate 3 and fixed by spot welding or bonding. Then, the drive component 4 inside the hollow placement platform 2 is activated, which moves the moving plate 41 down along the slide groove 22, so that the pressure plate 43 presses tightly against the connecting plate 3 with the help of the elastic pad 431 and the slot 32, ensuring that the connecting plate 3 is stable. Then, the drive component 6 on the bracket 5 drives the tension gauge 61 and the pull plate 62 down, fixing the upper surface of the motor core to the connecting plate 63 by spot welding or bonding. Finally, the drive component 6 applies tension, and the tension gauge 61 measures the tension in real time and feeds back the data. After the test is completed, the pressure plate 43 is rotated, the connecting plate 3 is removed, the fixing nut 632 is loosened, the connecting plate 63 is removed, and the core is cleaned. This improves the cleaning efficiency and helps protect the hollow placement platform 2.

[0040] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for detecting the pull-out force of an electric motor core, characterized in that: The system includes a base plate (1), which has a hollow placement platform (2). A connecting plate (3) with a fixed iron core is placed on the hollow placement platform (2). The side wall of the hollow placement platform (2) has several sliding grooves (22) arranged circumferentially in the vertical direction. A driving component (4) is inverted inside the hollow placement platform (2). The output end of the driving component (4) has a movable plate (41) that slides along the sliding grooves (22). The movable plate (41) has a column arranged vertically in the vertical direction. 42); The end of the column (42) away from the moving plate (41) is rotatably provided with a pressure plate (43) that can press against the connecting plate (3); The base plate (1) is provided with a bracket (5), and the bracket (5) is provided with a driving component (6) above the hollow placement platform (2). The output end of the driving component (6) is provided with a tension gauge (61), the tension gauge (61) is provided with a pull plate (62), and the bottom surface of the pull plate (62) is provided with a connecting plate (63) that is fixed to the upper surface of the iron core.

2. The device for detecting the pull-out force of a motor core according to claim 1, characterized in that: The connecting plate (3) is fitted to the hollow placement platform (2).

3. The device for detecting the pull-out force of a motor core according to claim 2, characterized in that: The connecting plate (3) is provided with several lifting plates (31) around its circumference for easy lifting.

4. The device for detecting the pull-out force of a motor core according to claim 3, characterized in that: The lifting plate (31) has a slot (311), and the hollow placement platform (2) is provided with a number of insert plates (21) corresponding to the slot (311).

5. The device for detecting the pull-out force of a motor core according to claim 1, characterized in that: The pressure plate (43) is provided with an elastic pad (431) that abuts against the connecting plate (3).

6. The motor core pull-out force detection device according to claim 5, characterized in that: The connecting plate (3) has several slots (32) corresponding to the elastic pad (431).

7. The device for detecting the pull-out force of a motor core according to claim 1, characterized in that: The bracket (5) is provided with telescopic rods (7) at both ends of the drive component (6), and the end of the telescopic rod (7) away from the drive component (6) is connected to the pull plate (62).

8. The device for detecting the pull-out force of a motor core according to claim 1, characterized in that: The connecting plate (63) is provided with a connecting rod (631) that passes through the pull plate (62), and a fixing nut (632) is threaded to the end of the connecting rod (631) away from the pull plate (62).

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