Magnetic suspension motor module stator external load equivalent simulation test system

Abstract

The invention relates to the technical field of magnetic suspension, and discloses a magnetic suspension motor module stator external load equivalent simulation test system. The system comprises a first module mounting piece, a second module mounting piece, a guiding force equalizing plate, a load applying device, a test tool and a propulsive force equalizing block, and a motor module is fixed on the test tool through the first module mounting piece and the second module mounting piece. The load applying device is arranged on the test tool and is used for applying an equivalent guiding force external load and an equivalent propulsive force external load to the motor module; the guiding force equalizing plate is arranged between the load applying device and the bottom of the motor module and is used for increasing the action area of the load applying device at the bottom of the motor module during a guiding force equivalent external load loading test; and the propulsive force equalizing block is arranged between the load applying device and the side surface of the motor module and is used for increasing the acting area of the load applying device on the side surface of the motor module during a propulsive force equivalent external load loading test. Therefore, examination of the structural strength of the motor module can be realized.

Description

Technical Field

[0001] The invention relates to the field of magnetic levitation technology, and in particular to a magnetic levitation motor module stator external load equivalent simulation test system. Background Art

[0002] The motor modules installed on the tracks on both sides of the maglev train interact with the superconducting magnets installed on the maglev train to provide propulsion and guidance for the maglev train. The motor modules are an important part of the maglev rail transit system. For large-thrust motor modules, the thrust and guidance provided by a single motor module are usually at the meganewton level. It is usually necessary to conduct a stall test on this type of motor module to verify the actual output of the motor module and the consistency with the design and to assess the structural strength of the motor module. However, this type of motor module is usually large in size, and a large tooling, installation and test space are often required to conduct a stall test on it, which makes the test difficult and the test cost is high. Therefore, it is necessary to design a simulation test system that uses an external load equivalent to conduct an external load loading test on the motor module to replace the electromagnetic stall test to assess the structural strength of the motor module. Summary of the invention

[0003] The invention provides a magnetic levitation motor module stator external load equivalent simulation test system, which can solve the technical problems in the prior art.

[0004] The present invention provides a magnetic levitation motor module stator external load simulation test system, wherein the system includes a first module mounting member, a second module mounting member, a guide force equalizing plate, a load applying device, a test fixture and a propulsion force equalizing block, the motor module is fixed to the test fixture by the first module mounting member and the second module mounting member, the load applying device is arranged on the test fixture to apply an equivalent guide force external load and an equivalent propulsion force external load to the motor module, the guide force equalizing plate is arranged between the load applying device and the bottom of the motor module to increase the effective area of ​​the load applying device at the bottom of the motor module during the guide force equivalent external load loading test, and the propulsion force equalizing block is arranged between the load applying device and the side of the motor module to increase the effective area of ​​the load applying device on the side of the motor module during the propulsion force equivalent external load loading test.

[0005] Preferably, the system further comprises a bottom mounting member for connecting the motor module and the test fixture from the bottom of the motor module.

[0006] Preferably, the test fixture is a frame-type fixture, comprising two opposite side plates, a plurality of parallel longitudinal connecting rods arranged between the two opposite side plates, and a plurality of transverse connecting rods perpendicular to the longitudinal connecting rods.

[0007] Preferably, the load applying device comprises a bottom load applying device and a side load applying device, the bottom load applying device is arranged at the intersection of the longitudinal connecting rod and the transverse connecting rod, and the side load applying device is arranged on the side plate.

[0008] Preferably, the load applying device is a hydraulic device.

[0009] Preferably, the first module mounting member is a bolt.

[0010] Preferably, the second mounting member of the module is an anchor plate.

[0011] Preferably, the bottom mounting member is a bolt.

[0012] Through the above technical solution, the motor module can be fixed on the test fixture through the mounting parts, and the external load can be applied to the motor module by using the load application device, and the motor module load can be simulated by the external load to assess the motor module structural strength. The test system has a simple structure, is easy to operate, and saves test expenses. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The included drawings are used to provide a further understanding of the embodiments of the present invention, which constitute a part of the specification, are used to illustrate the embodiments of the present invention, and together with the text description, explain the principles of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 An exploded diagram of a magnetic levitation motor module stator external load simulation test system according to an embodiment of the present invention is shown;

[0015] Figure 2 A partial structural schematic diagram of a magnetic levitation motor module stator external load simulation test system according to an embodiment of the present invention is shown;

[0016] Figure 3 A partial structural schematic diagram of a magnetic levitation motor module stator external load simulation test system according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0017] It should be noted that, in the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0019] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0020] like Figure 1-3As shown, an embodiment of the present invention provides a magnetic levitation motor module stator external load simulation test system, wherein the system includes a first module mounting member 1, a second module mounting member 2, a guide force equalizing plate 4, a load applying device 5, a test fixture 6 and a propulsion force equalizing block 8, the motor module 3 is fixed to the test fixture 6 by the first module mounting member 1 and the second module mounting member 2, the load applying device 5 is arranged on the test fixture 6 for applying an equivalent guide force external load and an equivalent propulsion force external load to the motor module 3, the guide force equalizing plate 4 is arranged between the load applying device 5 and the bottom of the motor module 3 for increasing the effective area of ​​the load applying device 5 at the bottom of the motor module 3 during the guide force equivalent external load loading test, and the propulsion force equalizing block 8 is arranged between the load applying device 5 and the side of the motor module 3 for increasing the effective area of ​​the load applying device 5 on the side of the motor module 3 during the propulsion force equivalent external load loading test.

[0021] The motor module interacts with the superconducting magnet to provide propulsion and guidance for the maglev train, and is the test piece during the test. By fixing the motor module and the load application device on the test fixture, the force generated by the load application device can be converted into the internal force between the fixture and the motor module, thus avoiding the generation of additional fixtures during the test.

[0022] Through the above technical solution, the motor module can be fixed on the test fixture through the mounting parts, and the external load can be applied to the motor module by using the load application device, and the motor module load can be simulated by the external load to assess the motor module structural strength. The test system has a simple structure, is easy to operate, and saves test expenses.

[0023] According to one embodiment of the present invention, the system further comprises a bottom mounting member 7 for connecting the motor module 3 and the test fixture 6 from the bottom of the motor module 3 .

[0024] By connecting the test fixture from the bottom of the motor module through the bottom mounting parts, the deformation of the module when the guide force is applied can be reduced.

[0025] According to one embodiment of the present invention, the test fixture 6 is a frame-type fixture, including two opposite side panels, a plurality of parallel longitudinal connecting rods arranged between the two opposite side panels, and a plurality of transverse connecting rods perpendicular to the longitudinal connecting rods.

[0026] For example, the number of longitudinal connecting rods may be four, and the number of transverse connecting rods may be three.

[0027] According to one embodiment of the present invention, the load applying device 5 includes a bottom load applying device and a side load applying device. The bottom load applying device is arranged at the intersection of the longitudinal connecting rod and the transverse connecting rod, and the side load applying device is arranged on the side panel.

[0028] Specifically, the guide force equalizing plate is arranged between the bottom load applying device and the bottom of the motor module, and the propulsion force equalizing block is arranged between the side load applying device and the bottom of the motor module.

[0029] In the case of four longitudinal connecting rods and three transverse connecting rods, the number of the bottom load applying devices may be nine.

[0030] According to an embodiment of the present invention, the load applying device 5 is a hydraulic device.

[0031] According to an embodiment of the present invention, the first module mounting member 1 is a bolt (upper mounting bolt).

[0032] For example, bolts are used to fix the motor module to the test fixture from the upper part of the motor module to bear the guide force of the motor module.

[0033] According to an embodiment of the present invention, the second module mounting member 2 is an anchor plate.

[0034] For example, the anchor plates can be alternately arranged with the bolts to fix the motor module, and the propulsion force of the motor module can be borne by arranging the anchor plates.

[0035] According to an embodiment of the present invention, the bottom mounting member 7 is a bolt (bottom mounting bolt).

[0036] The following describes the test process of the magnetic levitation motor module stator external load simulation test system described in the present invention with reference to examples.

[0037] When conducting an equivalent simulation test of the external load of the guide force on the motor module, the motor module, the test fixture and the hydraulic device can be assembled. The motor module is connected to the test fixture through the upper mounting bolts and anchor plates and the bottom mounting bolts, and 9 hydraulic devices are installed in the 9 spaces for installing hydraulic devices generated by the staggered four longitudinal connecting rods and three transverse connecting rods of the test fixture, and the guide force equalizing plate is inserted between the motor module and the hydraulic device. At this point, the connection between the motor module of the test piece and the test fixture is completed.

[0038] The load that each hydraulic device needs to provide can be pre-set. The two ends of the motor module's propulsion direction are usually locations where the structural strength is relatively weak. Therefore, the load loading principle can be to apply the limit load at both ends of the motor module at the same time to assess the weak structural strength of the motor module, and apply the remaining load after deducting the limit loads at both ends from the total guide load in the middle of the motor module. If the overall structural strength consistency of the motor module is good, then each hydraulic device can be considered to be loaded evenly, and the specific loading conditions can be determined according to actual needs. When loading, hydraulic devices that apply the same load in symmetrical positions need to apply the load at the same time. The load can be loaded multiple times, and 10% of the total load can be applied each time, increasing in sequence. When the load is removed after the test, it is also gradually reduced through multiple times.

[0039] Through this test, by applying guided force loads at different positions of the motor module, it is possible to approximately simulate the influence of the guided electromagnetic load generated by the internal coil of the motor module when it is acted upon by the superconducting magnet on the motor module body, thereby assessing the structural strength and bolt connection strength of the motor module body.

[0040] When the motor module is subjected to an equivalent simulation test of the external load of the propulsion force, the motor module, the test fixture and the hydraulic device can be assembled. The motor module is connected to the test fixture through the upper mounting bolts, the anchor plate and the bottom bolts, and two hydraulic devices are installed at the side plate position of the test fixture, and the propulsion force equalizing block is inserted between the hydraulic devices on the side of the motor module and the side plate. The number of hydraulic devices can be determined according to needs, and the present invention is not limited to the above number. At this point, the connection between the motor module of the test piece and the test fixture is completed.

[0041] The propulsion force on the upper and lower parts of the motor module in the suspension direction can be pre-set, and the propulsion force on the upper and lower parts can be applied respectively at the two hydraulic device action positions. The total propulsion force can also be applied evenly to the two hydraulic device action positions. The specific situation can be loaded according to the specific force situation of the motor module.

[0042] Through this test, after the motor module is installed and fixed, a thrust load is applied at one end of the motor module in the propulsion direction, and the entire thrust load is evenly distributed or uniformly applied to the side of the module through the pressure equalizing block, so as to approximately simulate the influence of the thrust electromagnetic load generated by the internal coil of the motor module when it is acted upon by the superconducting magnet on the motor module body, and assess the structural strength of the motor module body and the strength of the anchor plate installation interface.

[0043] Those skilled in the art should understand that the execution order in the above test process is merely exemplary and is not intended to limit the present invention.

[0044] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0045] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0046] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A magnetic levitation motor module stator external load simulation test system, It is characterized in that The system comprises a first module mounting member (1), a second module mounting member (2), a guide force equalizing plate (4), a load applying device (5), a test fixture (6) and a propulsion force equalizing block (8); the motor module (3) is fixed on the test fixture (6) through the first module mounting member (1) and the second module mounting member (2); the load applying device (5) is arranged on the test fixture (6) for applying an equivalent guide force external load and an equivalent propulsion force external load to the motor module (3); the guide force equalizing plate (4) is arranged between the load applying device (5) and the bottom of the motor module (3) for increasing the effective area of ​​the load applying device (5) at the bottom of the motor module (3) during a guide force equivalent external load loading test; the propulsion force equalizing block (8) is arranged between the load applying device (5) and the side of the motor module (3) for increasing the effective area of ​​the load applying device (5) at the side of the motor module (3) during a propulsion force equivalent external load loading test.

2. The system according to claim 1, It is characterized in that The system also includes a bottom mounting member (7) for connecting the motor module (3) and the test fixture (6) from the bottom of the motor module (3).

3. The system according to claim 2, It is characterized in that The test tool (6) is a frame-type tool, comprising two opposite side plates, a plurality of parallel longitudinal connecting rods arranged between the two opposite side plates, and a plurality of transverse connecting rods perpendicular to the longitudinal connecting rods.

4. The system according to claim 3, It is characterized in that The load applying device (5) comprises a bottom load applying device and a side load applying device, wherein the bottom load applying device is arranged at the intersection of the longitudinal connecting rod and the transverse connecting rod, and the side load applying device is arranged on the side plate.

5. The system according to any one of claims 1 to 4, It is characterized in that The load applying device (5) is a hydraulic device.

6. The system according to any one of claims 1 to 4, It is characterized in that The first module mounting member (1) is a bolt.

7. The system according to claim 6, It is characterized in that The second module mounting member (2) is an anchoring plate.

8. The system according to any one of claims 2 to 4, It is characterized in that The bottom mounting member (7) is a bolt.

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