Riveting force testing device for compressor motor iron core
By designing a riveting force testing device for compressor motor iron cores, the problem of cracking caused by insufficient riveting force of iron cores was solved, and the iron core quality assessment and operation were simplified, making it suitable for testing iron cores of different sizes.
Patent Information
- Application Number
- CN202423196440.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-24
AI Technical Summary
When the compressor motor core is long, insufficient riveting force can cause cracks, affecting the quality of the finished motor.
Design a device for testing the riveting force of compressor motor iron core, including an iron plate, connectors and double-sided tape. The riveting force of the iron core is tested by a tensile testing machine to ensure that the iron core and the iron plate are tightly attached and the tensile test is performed in a horizontal state.
The testing device assesses the riveting force of the iron core, reduces or avoids iron core cracking, improves the overall quality of the motor, simplifies testing operations, and adapts to iron cores of different sizes.
Smart Images
Figure CN223692154U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a compressor technical field, specifically, especially relates to a riveting force testing device for compressor motor core. BACKGROUND
[0002] The production of motor core for compressor has multiple forms. In the early design stage, laser cutting and lamination welding form is one of the optional items, which can accurately shape and build the shape and structure of the core in the early design stage. When entering the mass production link, the stamping lamination welding form or the riveting form is more commonly used. The stamping lamination riveting form does not need welding process, can effectively improve the production efficiency and reduce the cost, so that the production process is more simple and efficient, but the core produced by this form also has certain problems. When the length of the core is large, a small amount of core cracking quality problems may occasionally occur. Research shows that the main reason for this phenomenon is that the riveting force is too small, which cannot provide enough fastening force for the core. Especially in the case of increasing the length of the core and the more complex structure of the force, the disadvantages of insufficient riveting force will be highlighted, thereby adversely affecting the quality of the finished motor. SUMMARY
[0003] According to the above-mentioned technical problem of the cracking of the motor stator core for compressor, a riveting force testing device for compressor motor core is provided. The testing device is installed on the tensile testing machine together with the measured core. The measured core requires annealing, and the test is carried out at room temperature with slow and uniform stretching speed.
[0004] The technical means adopted by the utility model are as follows:
[0005] A riveting force testing device for compressor motor core, comprising: a connecting piece, an iron plate, a double-sided tape:
[0006] The iron plate is two pieces, which are respectively arranged at the upper and lower ends of the measured core, and is fixed with the connecting piece through a plurality of bolts;
[0007] The size of the iron plate is greater than the outer diameter of the measured core, and the surface is provided with a threaded hole matched with the connecting piece, for realizing the stable connection between the iron plate and the connecting piece;
[0008] The connecting piece is respectively provided with a bolt hole for fixing the iron plate and a through hole for connecting with the tensile testing machine at both ends, and an iron rod with an outer diameter smaller than the through hole is inserted into the through hole, so as to connect the testing device to the tensile testing machine;
[0009] The double-sided tape uniformly covers the upper and lower end surfaces of the measured core, and fixes the core between the upper and lower iron plates, so as to ensure that the core is closely attached to the iron plate and does not displace during the tensile test.
[0010] Further, the material of the iron plate is high-strength metal, and is subjected to anti-corrosion treatment, so as to improve the durability and reusability of the device.
[0011] Further, the connecting piece is made of corrosion-resistant metal and has a certain amount of movement, so as to ensure that the two iron plates are kept in a horizontal state during assembly.
[0012] Further, the double-sided tape has high-strength adhesion, can withstand the stress of the iron core during the tensile test, and is easy to remove without damaging the surface of the iron core after the test is completed.
[0013] Further, the iron plate is fixed to the clamping part of the tensile testing machine through the connecting piece, the iron plate is kept in a horizontal state during the test, and the distance between the upper and lower iron plates can be adjusted by adjusting the length of the connecting piece, so as to adapt to iron cores of different sizes.
[0014] Further, the test parameters of the tensile testing machine are set and recorded by the matching software, and the test results include the breaking value of the riveting strength of the iron core, which is used to evaluate the riveting quality of the iron core.
[0015] The utility model also provides a kind of compressor, and the oil supply structure of the above oil quantity can be automatically adjusted is used on the compressor.
[0016] Compared with the prior art, the utility model has the following advantages due to the adoption of the above technical scheme:
[0017] 1. The riveting force testing device for the motor iron core of the compressor provided by the utility model tests the riveting force of the riveting iron core in the early development stage of motor and the maintenance stage of iron core stamping die, reduces or avoids the quality problem that the finished motor appears iron core cracking after design completion and die maintenance, and helps to improve the overall quality of motor.
[0018] 2. The riveting force testing device for the motor iron core of the compressor provided by the utility model is simple in structure, is composed of connecting piece, iron plate larger than the outer diameter of iron core and double-sided tape, and is easy to manufacture. The testing device and the measured iron core are installed on the tensile testing machine during testing, and the operation steps are not complex, and time consumption is less. As described in the example, testing and data recording can be carried out through simple operation.
[0019] 3. The riveting force testing device for the motor iron core of the compressor provided by the utility model, the distance between the upper and lower iron plates can be adjusted by adjusting the length of the connecting piece, so as to adapt to iron cores of different sizes.
[0020] Based on the above reasons, the utility model can be popularized in the field of compressor technology. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings described in the following are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.
[0022] Fig. 1 is a structural schematic view of a riveting force testing device for a compressor motor core of the present application;
[0023] Fig. 2 is a main view of a connecting piece of a riveting force testing device for a compressor motor core of the present application;
[0024] Fig. 3 is a main view of an iron plate of a riveting force testing device for a compressor motor core of the present application.
[0025] In the figure: 1, tensile testing machine; 2, connecting piece; 3, iron plate; 4, double-sided tape; 5, iron core; 6, table top. DETAILED DESCRIPTION
[0026] It should be noted that the embodiments and the features in the embodiments in the present application can be combined with each other without conflict. The technical solutions in the embodiments of the present application will be described in detail below with reference to the drawings and in combination with the embodiments.
[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0028] It should be noted that the terms used herein are only for describing the specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.
[0029] The foregoing description, for purposes of explanation, sets forth specific values and arrangements of components and steps that are subject to many options. The intent is to be accurate in describing the principles and novel features of the application. Thus, although the application has been described with reference to specific embodiments thereof, it will be apparent to those of ordinary skill in the art that a number of changes can be made thereto without departing from the spirit and scope of the application. For example, the various features of the application can be used in any combination or sub-combination thereof. Accordingly, the application is not to be limited by the above description but is to be given full scope of the appended claims.
[0030] In the description of the present application, it is to be understood that the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship are usually based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, without making the opposite statement, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the scope of protection of the present application: the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.
[0031] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper" and the like can be used herein to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the example term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative description used herein is interpreted accordingly.
[0032] In addition, it should be noted that the use of "first", "second" and the like words to limit parts, only for the convenience of distinguishing the corresponding parts, if there is no further declaration, the above words have no special meaning, therefore, it cannot be understood as a limitation on the scope of protection of the present application.
[0033] AsFigs. 1 to 3 As shown, this utility model provides a device for testing the riveting force of the compressor motor core 5, comprising: a connector 2, an iron plate 3, and double-sided adhesive tape 4.
[0034] The iron plate 3 consists of two pieces, which are respectively set at the upper and lower ends of the iron core 5 being tested, and are fixed to the connecting piece 2 by several bolts;
[0035] The size of the iron plate 3 is larger than the outer diameter of the iron core 5 being tested, and its surface is provided with threaded holes that mate with the connector 2, so as to achieve a stable connection between the iron plate 3 and the connector 2.
[0036] The connector 2 has bolt holes for fixing the iron plate 3 and through holes for connecting to the tensile testing machine 1 at both ends. An iron rod with an outer diameter smaller than the through hole is inserted into the through hole to connect the testing device to the tensile testing machine 1.
[0037] The double-sided tape 4 evenly covers the upper and lower end faces of the iron core 5 under test, fixing the iron core 5 between the upper and lower iron plates 3, ensuring that the iron core 5 is tightly attached to the iron plates 3 and does not shift during the tensile test.
[0038] Furthermore, Fig. 3 The iron plate 3 shown is fixed to the base plate by several bolts. Fig. 2 One end of the connector 2 shown is connected to the tensile testing machine 1 and the table 6 respectively through a through hole and an iron rod with an outer diameter slightly smaller than the through hole, keeping the upper and lower iron plates 3 horizontal with a certain amount of room for movement. The tensile testing machine 1 and the table 6 have their own tooling, such as... Fig. 2 The design of connector 2 shown must be compatible with the tooling of tensile testing machine 1. In this example, tensile testing machine 1 is manufactured by Haida Instruments, and the test data is recorded using the testing software provided by Haida Instruments on the computer.
[0039] Furthermore, the tested motor core 5 is in an unannealed state, and the temperature is within the room temperature range during testing. Double-sided tape 4 is used to evenly cover both ends of the tested core 5. The film of one end of the double-sided tape 4 is peeled off, and this end face is placed face down on the lower iron plate 3. The film of the double-sided tape 4 is peeled off on the other end. The tensile testing machine 1 moves the upper iron plate 3 downward so that it contacts the end face of the core 5. The parameters of the tensile testing machine 1 are set using the testing software provided by Haida Instruments on the computer to ensure that the tensile test is performed at a slow and uniform speed. The test begins, and the riveting strength value at the time of core 5 fracture is recorded. After the test, the iron plate 3 is separated from the tested core 5, the double-sided tape 4 is removed, and the next test can be performed.
[0040] Furthermore, the iron plate 3 is made of high-strength metal and has undergone anti-corrosion treatment to improve the durability and reusability of the device.
[0041] Further, the connecting pieces 2 are made of corrosion-resistant metal and have a certain amount of play to ensure that the two iron plates 3 remain horizontal during assembly.
[0042] Further, the double-sided tape 4 has high adhesive strength and can withstand the stress of the iron core 5 during the tensile test and is easy to remove without damaging the surface of the iron core 5 after the test is completed.
[0043] Further, the iron plates 3 are fixed to the clamping part of the tensile testing machine 1 by the connecting pieces 2, the iron plates 3 remain horizontal during the test, and the distance between the iron plates 3 can be adjusted by adjusting the length of the connecting pieces 2 to adapt to iron cores 5 of different sizes.
[0044] Further, the test parameters of the tensile testing machine 1 are set and recorded by the matching software, and the test results include the breaking value of the riveting strength of the iron core 5 to evaluate the riveting quality of the iron core 5.
[0045] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions described in the foregoing examples can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A device for testing the riveting force of a compressor motor core, characterized in that, include: Connectors, iron plate, double-sided tape: The iron plate consists of two pieces, which are respectively placed at the upper and lower ends of the iron core being tested, and are fixed to the connecting parts by several bolts; The size of the iron plate is larger than the outer diameter of the iron core being tested, and its surface is provided with threaded holes that mate with the connectors to achieve a stable connection between the iron plate and the connectors. The connector has bolt holes for fixing iron plates and through holes for connecting to a tensile testing machine at both ends. An iron rod with an outer diameter smaller than the through hole is inserted into the through hole to connect the testing device to the tensile testing machine. The double-sided tape evenly covers the upper and lower end faces of the iron core under test, fixing the iron core between the upper and lower iron plates, ensuring that the iron core is in close contact with the iron plates and does not shift during the tensile test.
2. The device for testing the riveting force of a compressor motor core according to claim 1, characterized in that, The iron plate is made of high-strength metal and has undergone anti-corrosion treatment to improve the durability and reusability of the device.
3. The device for testing the riveting force of a compressor motor core according to claim 1, characterized in that, The connector is made of corrosion-resistant metal and has a certain amount of allowable movement to ensure that the two iron plates remain horizontal during assembly.
4. The device for testing the riveting force of a compressor motor core according to claim 1, characterized in that, The double-sided tape has high adhesive strength, can withstand the stress of the iron core during the tensile test, and is easy to remove without damaging the surface of the iron core after the test.
5. The device for testing the riveting force of a compressor motor core according to claim 1, characterized in that, The iron plates are fixed to the clamping part of the tensile testing machine by connectors. The iron plates remain horizontal during the test, and the distance between the iron plates can be adjusted by adjusting the length of the connectors to accommodate iron cores of different sizes.
6. A device for testing the riveting force of a compressor motor core according to any one of claims 1 to 5, characterized in that, The test parameters of the tensile testing machine are set and recorded by the supporting software. The test results include the fracture value of the core riveting strength, which is used to evaluate the riveting quality of the core.