Drawing force test clamp for self-bonding iron core
By designing a pulling force test fixture for self-adhesive core, using the cooperation of the connector and the tensioning machine, the problem of difficulty in testing the pulling force of the self-adhesive core in the prior art is solved, and the core pulling is achieved Accurate measurement and testing of pulling force.
Patent Information
- Application Number
- CN202420558350.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-21
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-03-21
AI Technical Summary
The prior art is difficult to effectively test the pulling force of the self-adhesive iron core, and there is a lack of appropriate testing fixtures.
A pulling force testing fixture including a first force receiving member, a second force receiving member, a first connector and a second connector are designed, and inserted into the self-adhesive core to be tested through the first and second connectors. The peripheral wall is connected to it, and the tensioning force is applied by a tensioning machine to measure the pulling force of the self-adhesive iron core.
Accurate testing of the pulling force of the self-adhesive core is achieved, ensuring the effectiveness and accuracy of the test, and is suitable for the setting of bonding factors in different usage scenarios.
Smart Images
Figure CN222166725U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of self-bonding iron cores, and in particular to a pull-out force testing fixture for self-bonding iron cores. Background Art
[0002] An electric motor, commonly known as a motor, is an electromagnetic device that converts or transmits electrical energy according to the law of electromagnetic induction. Its main function is to generate driving torque as a power source for electrical appliances or various machines. The iron core plays a pivotal role in the entire motor. It is used to increase the magnetic flux of the inductor coil and achieve the maximum conversion of electromagnetic power.
[0003] With the continuous development of new energy, companies have higher and higher requirements on the quality of the iron core in the motor, and the materials are getting thinner and thinner. The emerging bonding process can greatly improve the performance of the iron core and reduce iron loss, making self-bonding iron core the darling of the market.
[0004] Most self-bonded cores are annular, which makes it very difficult to test the pull-out force of the core after self-bonding. Currently, there is no effective test fixture. In view of this, it is necessary to develop a fixture to test the pull-out force of the self-bonded core. Utility Model Content
[0005] In order to solve the above-mentioned deficiencies in the prior art, the present application provides a pull-out force testing fixture for a self-bonding iron core.
[0006] The present application is implemented through the following technical scheme: a pull-out force testing fixture for a self-bonded iron core, comprising a first force-bearing member, a second force-bearing member, a first connecting member and a second connecting member, the first force-bearing member is connected to the first connecting member, the second force-bearing member is connected to the second connecting member, the first connecting member and the second connecting member are arranged between the first force-bearing member and the second force-bearing member, the first connecting member and the second connecting member are coaxially opposite to each other, the first force-bearing member and the second force-bearing member are respectively used to connect to a tensile testing machine, the first connecting member and the second connecting member are respectively used to be inserted into the inner circumferential wall of a self-bonded iron core to be tested and connected to the self-bonded iron core to be tested, and the first connecting member and the second connecting member have a certain distance after being inserted into the self-bonded iron core to be tested.
[0007] Furthermore, the first force-bearing member is a first force-bearing tension plate, the second force-bearing member is a second force-bearing tension plate, and the first force-bearing tension plate and the second force-bearing tension plate are arranged in parallel.
[0008] Furthermore, the first connecting member is a first screw rod, the second connecting member is a second screw rod, the first screw rod is vertically connected to the first stress-bearing tension plate, and the second screw rod is vertically connected to the second stress-bearing tension plate.
[0009] Furthermore, the outer diameter of the first screw is equal to the outer diameter of the second screw, and the outer diameter of the first screw is larger than the inner diameter of the self-bonding core to be tested.
[0010] Furthermore, the outer circumferences of the first screw and the second screw are coated with glue.
[0011] Furthermore, the first screw rod and the first stress-bearing tension plate are integrally arranged or separately arranged, and the second screw rod and the second stress-bearing tension plate are integrally arranged or separately arranged.
[0012] Furthermore, the lengths of the first connecting member and the second connecting member are equal, and the lengths of the first connecting member and the second connecting member inserted into the inner circumferential wall of the self-bonding core to be tested are also equal.
[0013] The pull-out force testing fixture for the self-bonding core provided in the present application realizes the connection between the testing fixture and the self-bonding core to be tested by setting a first connecting member and a second connecting member, thereby facilitating the testing of the pull-out force of the self-bonding core. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. 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 paying any creative labor.
[0015] Figure 1 It is a schematic diagram of the assembly structure of the pull-out force test fixture of the self-bonding iron core of the present application and the self-bonding iron core to be tested. DETAILED DESCRIPTION
[0016] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for which protection is sought, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.
[0017] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0018] In addition, it should be understood that although the terms first, second, third, etc. may be used in the present application to describe various information, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".
[0019] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The singular forms of "a", "said" and "the" used in this application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically limited. It should also be understood that the term "and / or" used in this article refers to and includes any or all possible combinations of one or more associated listed items.
[0020] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0021] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0022] The following is a detailed description of a self-bonding iron core pull-out force test fixture of the present application in conjunction with the accompanying drawings. In the absence of conflict, the features of the following embodiments can be combined with each other.
[0023] Please refer to Figure 1 As shown, the present application provides a pull-out force test fixture for a self-bonded iron core, comprising a first force-bearing member, a second force-bearing member, a first connecting member and a second connecting member, wherein the first force-bearing member is connected to the first connecting member, the second force-bearing member is connected to the second connecting member, the first connecting member and the second connecting member are arranged between the first force-bearing member and the second force-bearing member, the first connecting member and the second connecting member are coaxially opposite to each other, the first force-bearing member and the second force-bearing member are respectively used to connect to a tensile testing machine, the first connecting member and the second connecting member are respectively used to be inserted into the inner circumferential wall of the self-bonded iron core 10 to be tested and connected to the self-bonded iron core 10 to be tested, and the first connecting member and the second connecting member have a certain distance 30 after being inserted into the self-bonded iron core 10 to be tested.
[0024] The self-bonding core 10 to be tested is subjected to a pull-out force test after being bonded and cured at a set temperature and a set pressure. The first connecting member and the second connecting member are respectively inserted from both ends of the self-bonding core 10 to be tested and fixed to its inner circumferential wall. Then, the tensile testing machine acts on the first force-bearing member and the second force-bearing member to pull the first force-bearing member and the second force-bearing member to move in opposite directions. By applying tensile forces of different magnitudes, the electrical steel on the self-bonding core 10 to be tested is peeled off, and the pull-out force of the self-bonding core 10 is measured, thereby realizing the pull-out force test of the self-bonding core 10, so that the bonding factor of the self-bonding core 10 can be set according to the usage scenario.
[0025] After the first connecting member and the second connecting member are inserted into the self-bonding core 10, there is a certain distance 30 between them, so that under the pulling action of the tensile testing machine, the adjacent electrical steels in the middle position of the self-bonding core 10 are peeled off first, ensuring the accuracy of the pulling force test of the self-bonding core 10.
[0026] In this embodiment, the first force-bearing member is a first force-bearing tension plate 21, and the second force-bearing member is a second force-bearing tension plate 23. The first force-bearing tension plate 21 is arranged in parallel with the second force-bearing tension plate 23. Such an arrangement enables the forces received by the first force-bearing tension plate 21 and the second force-bearing tension plate 23 to be more uniform, thereby ensuring the effectiveness of the pull-out force test of the self-bonding core 10 to be tested.
[0027] In this embodiment, the first connecting member is a first screw 22, and the second connecting member is a second screw 24. The first screw 22 is vertically connected to the first force-bearing tension plate 21, and the second screw 24 is vertically connected to the second force-bearing tension plate 23. The first screw 22, the second screw 24, the first force-bearing tension plate 21 and the second force-bearing tension plate 23 are coaxially arranged.
[0028] In this embodiment, the outer diameter of the first screw 22 is equal to the outer diameter of the second screw 24, and the outer diameter of the first screw 22 is larger than the inner diameter of the self-bonding core 10 to be tested. The thread engagement force of the first screw 22 and the second screw 24 ensures the fixed connection between the first screw 22 and the self-bonding core 10 to be tested, and between the second screw 24 and the self-bonding core 10 to be tested. However, due to a certain gap in the thread, the outer periphery of the first screw 22 and the second screw 24 is coated with glue, so that the connection between the first screw 22 and the inner peripheral wall of the self-bonding core 10 to be tested, and between the second screw 24 and the inner peripheral wall of the self-bonding core 10 to be tested is more effective and stable.
[0029] The first screw 22 is integrally or separately arranged with the first tension plate 21, and the second screw 24 is integrally or separately arranged with the second tension plate 23. In this embodiment, the first screw 22 is integrally formed with the first tension plate 21, and the second screw 24 is integrally formed with the second tension plate 23.
[0030] The lengths of the first screw 22 and the second screw 24 are equal, and the lengths of the first screw 22 and the second screw 24 inserted into the inner circumferential wall of the self-bonding core 10 to be tested are also equal. In this way, the electrical steel corresponding to the center of the self-bonding core 10 to be tested, that is, the center between the first screw 22 and the second screw 24, can be peeled off first, further ensuring the accuracy of the pull-out force test of the self-bonding core 10.
[0031] The above is only a preferred embodiment of the present application and does not constitute any form of limitation to the present application. Although the present application has been disclosed as a preferred embodiment as above, it is not intended to limit the present application. Any technician familiar with the profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present application. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application still falls within the scope of the technical solution of the present application.
Claims
1. A pull-out force test fixture for a self-bonded iron core, characterized in that: It includes a first force-bearing member, a second force-bearing member, a first connecting member and a second connecting member, the first force-bearing member is connected to the first connecting member, the second force-bearing member is connected to the second connecting member, the first connecting member and the second connecting member are arranged between the first force-bearing member and the second force-bearing member, the first connecting member and the second connecting member are coaxially opposite to each other, the first force-bearing member and the second force-bearing member are respectively used to connect a tensile testing machine, the first connecting member and the second connecting member are respectively used to be inserted into the inner circumferential wall of a self-bonded core to be tested and connected to the self-bonded core to be tested, and the first connecting member and the second connecting member have a certain distance after being inserted into the self-bonded core to be tested.
2. The pull-out force test fixture of the self-bonding iron core according to claim 1, characterized in that: The first force-bearing member is a first force-bearing tension plate, the second force-bearing member is a second force-bearing tension plate, and the first force-bearing tension plate is arranged in parallel with the second force-bearing tension plate.
3. The pull-out force test fixture of the self-bonding iron core according to claim 2, characterized in that: The first connecting member is a first screw rod, the second connecting member is a second screw rod, the first screw rod is vertically connected to the first force-bearing tension plate, and the second screw rod is vertically connected to the second force-bearing tension plate.
4. The pull-out force test fixture of the self-bonding iron core according to claim 3, characterized in that: The outer diameter of the first screw is equal to the outer diameter of the second screw, and the outer diameter of the first screw is larger than the inner diameter of the self-bonding core to be tested.
5. The pull-out force test fixture of the self-bonding iron core according to claim 4, characterized in that: The outer circumferences of the first screw and the second screw are coated with glue.
6. The pull-out force test fixture of the self-bonding iron core according to claim 3, characterized in that: The first screw rod and the first stress-bearing pulling plate are integrally or separately arranged, and the second screw rod and the second stress-bearing pulling plate are integrally or separately arranged.
7. The pull-out force test fixture of the self-bonding iron core according to claim 1, characterized in that: The lengths of the first connecting member and the second connecting member are equal, and the lengths of the first connecting member and the second connecting member inserted into the inner peripheral wall of the self-bonding core to be tested are also equal.