A long stator test bench

Abstract

The present invention belongs to the field of long stator testing, and specifically relates to a long stator test bench, which includes a working platform and a long stator fixing table. A dimensional measurement station and an electromagnetic performance test station are arranged on the working platform. A driving force test component and a suspension force test component are arranged on the electromagnetic performance test station. The long stator fixing table is movably arranged on the working platform, and when passing through the dimensional measurement station and the electromagnetic performance test station, it respectively conducts external dimension detection, driving force and suspension force tests on the long stator. The present invention can realize the dimensional measurement and electromagnetic performance test of the long stator, can conduct a relatively comprehensive test on the long stator after production, and the whole process is convenient, fast and efficient.

Description

Technical Field

[0001] The invention belongs to the field of long stator testing, and in particular relates to a long stator testing bench. Background Art

[0002] Currently, the maximum operating speed of common high-speed maglev trains reaches 503km / h. Ultra-high-speed operation requires the maglev train's suspension electromagnets to have a higher load-bearing capacity. Therefore, in research, design, production and testing, it is crucial to test the electromagnetic properties of the suspension electromagnets and long stators.

[0003] Among them, a comprehensive inspection of the size and electromagnetic performance of the long stator can perform a more comprehensive test on the formed long stator. However, when testing the size and electromagnetic performance of the long stator, the long stator needs to be disassembled and assembled on the work fixtures for size detection and electromagnetic performance detection in turn. The disassembly and assembly of the long stator to be tested and the positioning of the long stator with the electromagnet are time-consuming and labor-intensive, resulting in low test efficiency. This test method is suitable for random inspection of long stators, and long stators are generally produced in batches. The performance of the long stator has a great impact on the speed and safety of the suspension train. Therefore, the best way is to perform electromagnetic performance tests on each long stator that needs to be used. Therefore, there is an urgent need for a long stator test bench with high efficiency and high test speed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a long stator test bench for efficiently performing multi-faceted tests on a long stator.

[0005] The present invention provides a long stator test bench, comprising a working platform and a long stator fixing platform. The working platform is provided with a dimension measurement station and an electromagnetic performance test station. The electromagnetic performance test station is provided with a driving force test component and a suspension force test component. The long stator fixing platform is movably arranged on the working platform, and performs external dimension detection, driving force and suspension force tests on the long stator respectively when passing through the dimension measurement station and the electromagnetic performance test station.

[0006] Furthermore, an electromagnet is provided on the electromagnetic performance test station, and the driving force test component includes a moving component I and a test sensor. When the long stator fixing platform moves to the electromagnetic performance test station, the moving component I drives the test sensor to move to the side of the long stator fixing platform facing the driving direction.

[0007] Furthermore, a group of driving force test components are provided on each end of the long stator fixing platform along the length direction of the long stator.

[0008] Furthermore, an installation groove is provided on the working platform, and the moving component I is arranged in the installation groove. When the long stator fixing table moves to the electromagnetic performance test station, the moving component I drives the test sensor to move from the installation groove to the long stator fixing table.

[0009] Furthermore, a bracket is provided on the electromagnetic performance test station, and a linear moving mechanism I is arranged on the bracket along the length direction of the long stator on the long stator fixing table. The electromagnet is arranged at the output end of the linear moving mechanism I.

[0010] Furthermore, the suspension force test component is arranged between the bracket and the electromagnet. When the long stator fixing table moves to the position of the electromagnet, the electromagnet is energized to conduct the suspension force test.

[0011] Furthermore, a linear moving mechanism II is arranged on the bracket facing the long stator fixing table. The suspension force test component includes a tension sensor, and the tension sensor is connected to the electromagnet and the linear moving mechanism II.

[0012] Furthermore, two groups of the linear moving mechanism II and the tension sensor are correspondingly arranged on both sides of the electromagnet.

[0013] Furthermore, the two groups of the linear moving mechanism II move synchronously.

[0014] The present invention also provides a method for testing a long stator, which uses a long stator test bench and includes the following steps:

[0015] S1. The long stator to be tested is fixedly arranged on the long stator fixing table;

[0016] S2. The long stator fixing table moves to the dimension measurement station for dimension detection. If the dimension detection is qualified, it enters S3; otherwise, it enters S4;

[0017] S3. The long stator fixing table moves to the electromagnetic performance test station for suspension force and driving force detection;

[0018] S4. The long stator fixing table moves to the subsequent station to complete the detection.

[0019] The beneficial effect of the present invention is that the present invention can realize the dimension measurement and electromagnetic performance test of the long stator, and can conduct a relatively comprehensive test on the long stator after production. Among them, the electromagnetic performance test includes driving force test and suspension force test, and the test is carried out at one station, effectively improving the overall test efficiency. In addition, the long stator fixing table is movably arranged on the working platform, and the long stator to be tested can be sequentially tested on the working platform. With the cyclic use of multiple groups of long stator fixing tables, multi-directional tests on batches of long stators can be carried out quickly and efficiently. The whole process is convenient, fast and efficient. Description of the Drawings

[0020] Attached Figure 1 is a schematic structural diagram of the present invention.

[0021] Attached Figure 2 is a front view of the present invention.

[0022] Attached Figure 3 is a schematic structural diagram for the electromagnetic performance test of the present invention.

[0023] Attached Figure 4 is the Figure 3 partial enlarged view at A in the attached

[0024] Attached Figure 5 is a test schematic diagram for the electromagnetic performance test of the present invention.

[0025] Attached Figure 6 is the Figure 5 schematic structural diagram of the hidden bracket.

[0026] Attached Figure 7 is a schematic structural diagram of the dimension measurement station in the present invention.

[0027] Attached Figure 8 is a schematic structural diagram of the sensor detection station in the present invention.

[0028] In the figure, 1 - working platform; 11 - installation groove; 2 - long stator fixing table; 3 - electromagnet; 4 - long stator; 5 - driving force test component; 51 - moving component Ⅰ; 52 - test sensor; 6 - suspension force test component; 61 - tension sensor; 62 - hinge; 7 - dimension detection component; 71 - three - coordinate system moving component; 72 - displacement sensor; 8 - resin thickness detection component; 81 - moving component Ⅱ; 82 - resin thickness detection component; 9 - sensor detection component; 91 - moving component Ⅲ; 92 - suspension sensor; 10 - bracket; 101 - linear moving mechanism Ⅰ; 102 - linear moving mechanism Ⅱ. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0031] In addition, in the present invention, descriptions such as "first", "second", etc. are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0032] In the present invention, unless otherwise clearly specified and defined, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, a physical connection, or a wireless communication connection; it may be directly connected or indirectly connected through an intermediate medium, and may be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In addition, the technical solutions between various embodiments of the present invention can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0034] As shown in the attached Figure 1-8 The present invention provides a long stator test bench, including a working platform 1 and a long stator fixing platform 2. A dimension measurement station and an electromagnetic performance test station are provided on the working platform 1. A driving force test component 5 and a levitation force test component 6 are provided on the electromagnetic performance test station. The long stator fixing platform 2 is movably arranged on the working platform 1 and respectively performs external dimension detection, driving force and levitation force tests on the long stator 4 when passing through the dimension measurement station and the electromagnetic performance test station.

[0035] The present invention can realize the dimension measurement and electromagnetic performance test of the long stator 4, and can conduct a relatively comprehensive test on the long stator 4 after production. Among them, the electromagnetic performance test includes a driving force test and a levitation force test, and the test is carried out at one station, effectively improving the overall test efficiency. In addition, by movably arranging the long stator fixing platform 2 on the working platform 1, the long stator 4 to be tested can be successively tested on the working platform 1. With the cyclic use of multiple groups of long stator fixing platforms 2, multi-directional tests on a batch of long stators 4 can be carried out quickly and efficiently. The whole process is convenient, fast and efficient.

[0036] An electromagnet 3 is provided at the electromagnetic performance test station. The driving force test assembly 5 includes a moving assembly I 51 and a test sensor 52. When the long stator fixing table 2 moves to the electromagnetic performance test station, the moving assembly I 51 drives the test sensor 52 to move to the side of the long stator fixing table 2 facing the driving direction.

[0037] When the present invention conducts a driving force test, the long stator fixing table 2 moves to the electromagnetic performance test station according to its set moving path. Immediately, the moving assembly I 51 drives the test sensor 52 to abut against one end of the long stator fixing table 2. At this time, since the long stator fixing table 2 can continue to move towards the test sensor 52, after the coil on the long stator 4 is energized, the long stator 4 and the coil interact with the electromagnet 3, and the long stator 4 generates a tendency to move towards the test sensor 52 side, which will drive the long stator fixing table 2 to exert a force on the test sensor 52. This force can be fed back as the driving force between the electromagnet 3 and the long stator 4. When the standard electromagnet 3 is used for the electromagnet 3, the driving force test can be quickly carried out on multiple groups of long stators 4 to test the electromagnetic characteristics of the long stator 4 and the coil. After the driving force test is completed, only the moving assembly I 51 needs to drive the test sensor 52 to reset and leave the moving path of the long stator fixing table 2, and the long stator fixing table 2 can drive the long stator 4 to be tested to move to the next detection station or the blanking station. Therefore, only by ensuring the accuracy of the moving path of the long stator fixing table 2 can the driving force test be quickly completed. The whole test process is very convenient and fast, with high test efficiency, low positioning accuracy requirements and accurate test results.

[0038] One set of the driving force test assemblies 5 is provided at each of the two ends of the long stator 4 on the long stator fixing table 2 along the length direction. After the long stator fixing table 2 moves to the electromagnetic performance test station, the two sets of driving force test assemblies 5 respectively abut against the two ends of the long stator fixing table 2 to limit the movement of the long stator fixing table 2. By changing the current direction of the coil on the long stator 4, the driving force tests in two directions, forward and backward, can be carried out to obtain more test data and improve the test accuracy at the same time.

[0039] An installation groove 11 is provided on the workbench 1, and the moving assembly I 51 is arranged in the installation groove 11. When the long stator fixing table 2 moves to the electromagnetic performance test station, the moving assembly I 51 drives the test sensor 52 to move from the installation groove 11 to the long stator fixing table 2. In this embodiment, it is preferably that the installation groove 11 is arranged at the bottom of the tabletop of the workbench 1, which does not affect the normal movement of the long stator fixing table 2 and can reduce the floor area of the workbench 1 at the same time.

[0040] A support 10 is provided at the electromagnetic performance test station. Along the length direction of the long stator 4 on the long stator fixing table 2, a linear moving mechanism I 101 is provided on the support 10. The electromagnet 3 is arranged at the output end of the linear sliding mechanism I 101. In this embodiment, the linear moving mechanism I 101 is preferably a linear moving mechanism I without power output, that is, a guide rail slider mechanism. The output end of the linear moving mechanism I is the slider. At this time, the electromagnet 3 can move along the driving direction. After the coil on the long stator 4 is energized, a part of the driving force will drive the electromagnet 3 to move through the linear moving mechanism I, and another part of the force drives the long stator fixing table 2 to generate a force on the test sensor 52. In this embodiment, during the driving force test, the electromagnet 3 and the long stator 4 will generate relative movement, which can simulate the use environment of the maglev train and realize the dynamic driving force test. In addition, a locking structure can be set for the linear moving mechanism I to realize the quick switching between static test and dynamic test, so as to select dynamic or static driving force test according to needs.

[0041] The levitation force test assembly 6 is arranged between the support 10 and the electromagnet 3. When the long stator fixing table 2 moves to the position of the electromagnet 3, the electromagnet 3 is energized for levitation force test.

[0042] A linear moving mechanism II 102 is provided on the support 10 facing the long stator fixing table 2. In this embodiment, the linear moving mechanism II 102 is preferably arranged at the output end of the linear moving mechanism I 101. The levitation force test assembly 6 includes a tension sensor 61, and the tension sensor 61 is connected to the electromagnet 3 and the linear moving mechanism II 102. In this embodiment, the gap between the electromagnet 3 and the long stator 4 can be adjusted by the linear moving mechanism II 102. When testing different models of long stators 4, the test gap can be ensured to be consistent, ensuring the test accuracy. At the same time, the driving force and levitation force of the long stator 4 at different gaps can be tested to simulate different working conditions and obtain more test data. The levitation force test assembly 6 uses a tension sensor 61, and the levitation force can be directly reflected by the tension. In addition, in this embodiment, the levitation force test assembly 6 and the driving force test assembly 5 work together. The linear moving mechanism I 101 can adopt an active driving mechanism, such as a linear module, a cylinder or a hydraulic cylinder. By the active driving method, the electromagnet 3 can be driven to move along the length direction of the long stator 4 to realize the dynamic simulation test of the driving force and the levitation force. Of course, the linear moving mechanism I 101 can also be a non-powered linear sliding mechanism. The driving force drives the electromagnet 3 to move through the linear moving mechanism I 101 to realize the dynamic test, so that this test bench can simulate different working conditions.

[0043] There are two sets of the linear moving mechanism II 102 and the tension sensor 61 arranged correspondingly on both sides of the electromagnet 3. By arranging two sets correspondingly on both sides of the electromagnet 3, it can be ensured that during the process of the electromagnet 3 generating an attractive force (i.e., levitation force) towards the long stator 4, the levitation force of each planar part of the electromagnet 3 remains consistent, and the problem that the gaps on both sides of the electromagnet 3 are inconsistent due to the influence of the levitation force will not occur, improving the test accuracy of the levitation force.

[0044] The two sets of the linear moving mechanism II 102 move synchronously to avoid the problem that the gaps between the two ends of the electromagnet 3 and the long stator 4 are inconsistent.

[0045] The levitation force test assembly 6 further includes two hinge members 62. The two hinge members 62 are respectively arranged at both ends of the tension sensor 61. One is connected to the linear moving mechanism II 102, and the other is connected to the electromagnet 3. The axes of the two hinge members 62 are perpendicular to each other, and the axis of one of the hinge members 62 is parallel to the moving direction of the long stator fixing table 2. The two hinge members 62 can enable the tension sensor 61 to rotate relative to the electromagnet 3 in the driving direction of the electromagnet 3 (the length direction of the long stator 4) and the guiding force direction (the width direction of the long stator 4), reducing the bending moment of the tension sensor 61 when the positions of the electromagnet 3 and the long stator 4 do not correspond, or when the electromagnet 3 is moving, thereby reducing the influence on the tension sensor 61 and improving the data accuracy of the levitation force test. In addition, a locking structure can be arranged on one of the hinge members 62 whose axis is parallel to the width direction of the long stator fixing table 2. When performing static or dynamic driving force tests, the hinge member 62 can be locked through the locking structure, converting this direction into a fixed connection to avoid the swing of the electromagnet 3 affecting the driving force test.

[0046] The levitation force test assembly 6 and the driving force test assembly 5 of the present invention can be combined with each other. While the driving force test assembly 5 is performing the driving force test, the levitation force test assembly 6 can perform the levitation force test, further shortening the test time of the electromagnetic performance and improving the test efficiency;

[0047] When performing levitation force and driving force tests simultaneously, the position of the long stator fixing table 2 can be limited by the moving assembly I 51 and the test sensor 52 of the driving force test assembly 5, and at the same time, combined with the fixedly arranged electromagnet 3, static tests of the levitation force and the driving force can be realized. Or the electromagnet 3 can be driven by the linear moving mechanism I 101 to move linearly along the length direction of the long stator 4 during the test, thereby realizing dynamic tests of the levitation force and the driving force. When the linear moving mechanism I 101 is a non-powered linear sliding assembly, the electromagnet 3 is driven by the driving force, and thus dynamic tests of the levitation force and the driving force can be realized without a power device for the movement of the electromagnet 3, effectively reducing the cost and structural complexity of the equipment.

[0048] Such asFigure 7 As shown, a dimension detection component 7 is provided at the dimension measurement station in the present invention. The dimension detection component 7 includes a three-coordinate system moving component 71 and a displacement sensor 72. When the long stator fixing table 2 moves to the position of the electromagnet 3, the three-coordinate system moving component 71 drives the displacement sensor 72 to measure the external dimensions of the long stator 4.

[0049] The dimension detection component 7 of the present invention is composed of a three-coordinate system moving component 71 and a displacement sensor 72. The three-coordinate system moving component 71 can drive the displacement sensor 72 to detect the external dimensions of the long stator in the X / Y / Z three directions. Its detection efficiency is high. At the same time, since the long stator 4 is movably arranged on the working platform 1 through the long stator fixing table 2, the three-coordinate system moving component 71 can drive the displacement sensor 72 to move to position the test starting point. Therefore, the positioning requirement for the test position of the long stator fixing table 2 is low. In addition, the measurement in the length direction can be carried out during the movement of the long stator fixing table 2, that is, the three-coordinate system moving component 71 only moves along the ZX plane to detect the height and width of the long stator 4, while the long stator fixing table 2 moves along the Y direction of the working platform 1 to detect the length of the long stator 4. In this way, the long stator fixing table 2 does not need to stay and can complete the external dimension detection during the process of directly entering the next station, further improving the efficiency. On one side of the dimension detection component 7, a resin thickness detection component 8 is also provided. The resin thickness detection component 8 includes a moving component II 81 and a resin thickness detection piece 82. The resin thickness detection component 8 is composed of the moving component II 81 and the resin thickness detection piece 82, and can perform intermittent sampling detection on the surface resin part of the long stator 4 during the movement of the long stator fixing table 2 with the long stator 4 to be measured.

[0050] In addition, a sensor detection station can be further provided after the electromagnetic performance test station. A sensor detection component 9 can also be provided on the sensor detection station. The sensor detection component 9 includes a moving component III 91 and a suspension sensor 92. The long stator fixing table 2 is movably arranged on the working platform 1, and the long stator 4 or the suspension sensor 92 is detected when the long stator fixing table 2 passes through the sensor detection component 9.

[0051] The present invention also provides a method for testing a long stator, using a long stator test bench, including the following steps:

[0052] S1. The long stator 4 to be measured is fixedly arranged on the long stator fixing table 2;

[0053] S2. The long stator fixing table 2 moves to the dimension measurement station for dimension detection. If the dimension detection is qualified, it enters S3; otherwise, it enters S4;

[0054] S3. The long stator fixing table 2 moves to the electromagnetic performance test station for suspension force and driving force detection;

[0055] S4. The long stator fixed stage 2 moves to the subsequent workstations to complete the detection.

[0056] The content not described in detail in this specification belongs to the prior art well known to those skilled in the art.

Claims

1. A long stator test bench, characterized in that, It includes a working platform (1) and a long stator fixing platform (2). A dimension measurement station and an electromagnetic performance test station are arranged on the working platform (1). A driving force test component (5) and a levitation force test component (6) are arranged on the electromagnetic performance test station. The long stator fixing platform (2) is movably arranged on the working platform (1), and when passing through the dimension measurement station and the electromagnetic performance test station, it respectively conducts external dimension detection, driving force and levitation force tests on the long stator (4). An electromagnet (3) is arranged on the electromagnetic performance test station. The driving force test component (5) includes a moving component I (51) and a test sensor (52). When the long stator fixing platform (2) moves to the electromagnetic performance test station, the moving component I (51) drives the test sensor (52) to move to the side of the long stator fixing platform (2) facing the driving direction. One set of the driving force test component (5) is arranged at each of the two ends of the long stator (4) on the long stator fixing platform (2) along the length direction. An installation groove (11) is arranged on the working platform (1). The moving component I (51) is arranged in the installation groove (11). When the long stator fixing platform (2) moves to the electromagnetic performance test station, the moving component I (51) drives the test sensor (52) to move from the installation groove (11) towards the long stator fixing platform (2). After the driving force test is completed, the moving component I (51) drives the test sensor (52) to reset and leave the moving path of the long stator fixing platform (2), and then the long stator fixing platform (2) can move the long stator (4) to be tested to the next detection station or the blanking station. A bracket (10) is arranged on the electromagnetic performance test station. A linear moving mechanism I (101) is arranged on the bracket (10) along the length direction of the long stator (4) on the long stator fixing platform (2). The electromagnet (3) is arranged at the output end of the linear moving mechanism I (101). During the driving force test, relative movement will occur between the electromagnet (3) and the long stator (4), which can simulate the use environment of a maglev train and realize dynamic driving force test. The levitation force test component (6) is arranged between the bracket (10) and the electromagnet (3). When the long stator fixing platform (2) moves to the position of the electromagnet (3), the electromagnet (3) is powered on for levitation force test. The two sets of driving force test components (5) respectively abut against the two ends of the long stator fixing platform (2) to limit the movement of the long stator fixing platform (2). By changing the current direction of the coil on the long stator (4), driving force tests in two directions, forward and backward, are carried out. The levitation force test component (6) works together with the driving force test component (5).

2. The long stator test bench according to claim 1, characterized in that A linear moving mechanism II (102) is arranged on the bracket (10) facing the long stator fixing platform (2). The levitation force test component (6) includes a tension sensor (61), and the tension sensor (61) is connected to the electromagnet (3) and the linear moving mechanism II (102).

3. The long stator test bench according to claim 2, characterized in that, Two sets of the linear moving mechanism II (102) and the tension sensor (61) are correspondingly arranged on both sides of the electromagnet (3).

4. The long stator test bench according to claim 2, characterized in that, The two sets of the linear moving mechanism II (102) move synchronously.

5. A long stator testing method, characterized in that, Using the long stator test bench according to any one of claims 1-4, comprising the following steps: S1. The long stator to be tested (4) is fixedly arranged on the long stator fixing table (2); S2. The long stator fixing table (2) moves to the dimension measurement station for dimension detection. If the dimension detection is qualified, it enters S3; otherwise, it enters S4; S3. The long stator fixing table (2) moves to the electromagnetic performance test station for suspension force and driving force detection; S4. The long stator fixing table (2) moves to the subsequent station to complete the detection.

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