CN209784502U - Locked rotor test device for ultra-high-speed superconducting linear motor - Google Patents

Abstract

The utility model provides a stifled commentaries on classics test device for hypervelocity superconductive linear electric motor, the device includes first supporting bench, the second brace table, first curb plate, the second curb plate, force cell sensor and biography power unit, the stator is fixed to be set up on first supporting bench, the active cell sets up on the second brace table, the active cell sets up with the stator relatively, the second brace table has spacing hole, there is the clearance along the first direction between the bracing piece of active cell and the spacing hole, stator and active cell all are located between first curb plate and the second curb plate, force cell sensor sets up on first curb plate, biography power unit is connected with force cell sensor and active cell respectively, it transmits to force cell sensor to be used for the thrust along the first direction that the active cell produced to pass power unit. Use the technical scheme of the utility model to the structural strength who solves stifled commentaries on classics device among the prior art is more weak, can't be applicable to the experimental technical problem of stifled commentaries on classics of high-power high thrust linear electric motor.

Description

Locked rotor test device for ultra-high-speed superconducting linear motor

Technical Field

The utility model relates to a superconductive linear electric motor technical field especially relates to a stifled commentaries on classics test device for hypervelocity superconductive linear electric motor.

Background

the linear motor is a hot point of current domestic and international research, and is mainly applied to the fields of magnetic suspension trains, electromagnetic ejection, high-speed three-dimensional reservoirs, electromagnetic guns and the like. The superconducting linear motor mainly comprises a stator coil and a rotor coil, wherein the stator coil is formed by winding a common copper wire, the rotor coil is formed by winding a superconducting material, the superconducting material mainly comprises a low-temperature superconducting material and a high-temperature superconducting material, and the adopted superconducting materials are different according to different application scenes. Before the superconducting linear motor is put into production (particularly in batch production), the performance of the superconducting linear motor needs to be tested and obtained, particularly the performance of the superconducting linear motor under the condition of motor failure. Such as the output thrust of the linear motor, the acting force between the stator coil and the rotor coil during the instant loading, the structural strength of the stator coil and the rotor coil, the temperature rise of the stator coil, and the like. In the actual thrust test, a locked rotor test is generally adopted, and the maximum thrust of the motor, the temperature rise condition under the maximum thrust and the structural strength condition can be measured. These performance levels are very important levels of the motor. The locked rotor test needs to be carried out by designing a test tool, the tool can artificially control the motion speed of a motor rotor to be zero, and still outputs thrust, so that the purpose of measuring some important performances of the superconducting linear motor is achieved, and the test tool can be called as a locked rotor test tool.

The current locked rotor test tool is applied to a normally-conductive linear motor, namely, a rotor coil of the normally-conductive linear motor is a normally-conductive coil, and the output thrust of the motor can be measured at the speed of zero. Some patents adopt dolly pulley mechanism, install the active cell on the dolly, and the stator is fixed, utilizes stifled device restriction dolly displacement to reach the experimental purpose of stifled commentaries on classics. There are some patents that use a complex operating table to fix the motor mover. These fixtures are structurally weak. The device can not be used in the locked rotor test of the high-power high-thrust linear motor.

SUMMERY OF THE UTILITY MODEL

The utility model provides a stifled commentaries on classics test device for hypervelocity superconductive linear electric motor, the structural strength that can solve stifled commentaries on classics device among the prior art is relatively weak, can't be applicable to the experimental technical problem of stifled commentaries on classics of high-power high thrust linear electric motor.

The utility model provides a stifled test device that changes for hypervelocity superconductive linear electric motor, stifled test device that changes includes: the stator is fixedly arranged on the first supporting table; the first supporting platform and the second supporting platform are arranged oppositely, the rotor is arranged on the second supporting platform, the rotor and the stator are arranged oppositely, the second supporting platform is provided with a limiting hole, and a gap exists between a supporting rod of the rotor and the limiting hole along the first direction; the first side plate is respectively connected with one side of the first supporting platform and one side of the second supporting platform; the stator and the rotor are positioned between the first side plate and the second side plate; the force sensor is arranged on the first side plate; and the force transmission unit is respectively connected with the force transducer and the rotor and is used for transmitting the thrust generated by the rotor along the first direction to the force transducer.

Further, the locked rotor test device also comprises a temperature sensor, and the temperature sensor is arranged on a coil of the stator.

Further, the locked rotor test device further comprises a first strain foil unit and a second strain foil unit, wherein the first strain foil unit is arranged on the stator, and the second strain foil unit is arranged on the rotor.

Furthermore, the second support platform is provided with a plurality of limiting holes, the limiting holes are arranged at intervals, gaps exist between the support rod of the rotor and the limiting holes along the first direction, and the support rod of the rotor can be selectively matched with any limiting hole to measure thrust generated by the rotor at different positions.

furthermore, stifled commentaries on classics test device still includes the connecting plate, and the connecting plate sets up simultaneously on the upper portion of first brace table and second brace table and is connected with first brace table and second brace table respectively.

Furthermore, stifled commentaries on classics test device includes a plurality of connecting plates, and a plurality of connecting plates interval sets up, and each connecting plate is equallyd divide and is connected with first brace table and second brace table respectively.

Furthermore, the locked rotor test device further comprises a first adjusting base plate, the first adjusting base plate is arranged between the stator and the rotor, and the first adjusting base plate is used for adjusting a gap between the stator and the rotor.

further, the locked rotor test device further comprises a second base plate, the second base plate is arranged between the rotor and the second end plate, and the second base plate is used for limiting the rotor to move towards the second end plate along the first direction.

Furthermore, the locked rotor test device further comprises a third base plate, the third base plate is arranged between the force transmission unit and the second support platform, and the third base plate is used for limiting the movement of the rotor along the second direction.

Further, the force measuring sensor comprises a tension and pressure sensor, and the first adjusting base plate is made of polytetrafluoroethylene.

Use the technical scheme of the utility model, a locked rotor test device for hypervelocity superconductive linear electric motor is provided, force cell among this test device is connected with the active cell through passing the power unit, and motor stator and active cell magnetic field interact produce thrust, passes the power unit and transmits the thrust that the active cell produced to force cell, acquires the thrust of active cell through force cell. The mode has the advantages of high structural strength, flexible and simple structural installation and lower cost, and can be applied to the locked rotor test of the ultra-high-speed superconducting linear motor. Furthermore, the utility model discloses be provided with first curb plate and second curb plate respectively in the both sides of first brace table and second brace table, can prevent at the in-process of experiment that the active cell from moving along the first direction by a wide margin, ensure the safety of participating in examination personnel and peripheral equipment.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 shows a top view of a stall testing apparatus for an ultra-high speed superconducting linear motor according to an embodiment of the present invention;

Fig. 2 shows a schematic structural diagram of the support rod of the mover and the limiting hole of the second supporting platform according to an embodiment of the present invention.

Wherein the figures include the following reference numerals:

10. A first support table; 20. a second support table; 20a, a limiting hole; 30. a first side plate; 40. a second side plate; 50. a force sensor; 60. a force transfer unit; 70. a connecting plate; 71. a first connecting plate; 72. a second connecting plate; 73. a third connecting plate; 80. a first adjusting shim plate; 90. a second backing plate; 100. a third base plate; 200. a stator; 300. a mover; 310. a support rod.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

As shown in fig. 1, according to an embodiment of the present invention, there is provided a stalling test device for an ultra-high speed superconducting linear motor, the stalling test device includes a first supporting platform 10, a second supporting platform 20, a first side plate 30, a second side plate 40, a force measuring sensor 50 and a force transmission unit 60, a stator 200 is fixedly disposed on the first supporting platform 10, the first supporting platform 10 and the second supporting platform 20 are oppositely disposed, a mover 300 is disposed on the second supporting platform 20, the mover 300 is oppositely disposed with respect to the stator 200, the second supporting platform 20 has a limiting hole 20a, a gap exists between a supporting rod 310 of the mover 300 and the limiting hole 20a along a first direction, the first side plate 30 is respectively connected with one side of the first supporting platform 10 and one side of the second supporting platform 20, the second side plate 40 is respectively connected with the other side of the first supporting platform 10 and the other side of the second supporting platform 20, the stator 200 and the mover 300 are both located between the first side plate 30 and the second side plate 40, the load cell 50 is disposed on the first side plate 30, the force transmission unit 60 is connected to the load cell 50 and the mover 300, respectively, and the force transmission unit 60 is configured to transmit a thrust force generated by the mover 300 in the first direction to the load cell 50.

By applying the configuration mode, the locked rotor test device for the ultra-high-speed superconducting linear motor is provided, a force transducer in the test device is connected with a rotor through a force transmission unit, a motor stator and a rotor magnetic field interact to generate thrust, the force transmission unit transmits the thrust generated by the rotor to the force transducer, and the thrust of the rotor is obtained through the force transducer. The mode has the advantages of high structural strength, flexible and simple structural installation and lower cost, and can be applied to the locked rotor test of the ultra-high-speed superconducting linear motor. Furthermore, the utility model discloses be provided with first curb plate and second curb plate respectively in the both sides of first brace table and second brace table, can prevent at the in-process of experiment that the active cell from moving along the first direction by a wide margin, ensure the safety of participating in examination personnel and peripheral equipment. As a specific embodiment of the present invention, as shown in fig. 1, the first direction is the x direction in fig. 1.

Specifically, in the present invention, after the stator 200 and the mover 300 are mounted on the first support table 10 and the second support table 20, respectively, the mover 300 is excited to supply power to the stator 200 through the power supply. At this time, the motor stator 200 and the mover 300 generate thrust by the interaction of the magnetic fields, and the motor thrust is obtained by the load cell 50. The motor thrust is displayed through a display instrument matched with the force transducer. Under different current supplies, obtain corresponding linear motor thrust to clear and determine motor thrust characteristic. As a specific embodiment of the present invention, a tension/pressure sensor can be adopted as the load cell 50.

Further, the utility model discloses in, in order to measure the temperature rise condition of stator coil and in order to be used for providing data support for superconducting linear electric motor's development, can configure stifled commentaries on classics test device into still including temperature sensor, temperature sensor sets up on stator 200's coil.

The utility model discloses in, the maximum allowable temperature rise of coil has been decided to motor insulation level, if surpass the restriction, will lead to insulating material ageing with higher speed, shortens insulating material's life-span. The coil heating is caused by power loss, and because the stator coil is electrified, the loss is generated and converted into heat energy, so that the temperature of each part of the motor is increased, and the temperature rise of the stator coil is related to the electrifying size and the electrifying time of the stator 200. As a specific embodiment of the present invention, a copper-constantan thermocouple can be used as the temperature sensor, and the thermocouple method is used for temperature measurement. During measurement, a plurality of temperature measuring elements are stuck and fixed at different positions of the stator coil when the stator 200 is produced. During testing, a temperature measuring instrument is adopted to continuously acquire the temperature change of the stator coil. The temperature rise of the coil is obtained by collecting the temperature of the coil before and after the coil is electrified. Through a temperature rise test, accurate coil temperature characteristics can be obtained, and reference is provided for reasonable design of the superconducting linear motor and improvement of a cooling system.

Further, in the present invention, in order to measure the structural strength of the stator 200 and the mover 300, the stalling test device may be configured to further include a first strain gauge unit and a second strain gauge unit, the first strain gauge unit is disposed on the stator 200, and the second strain gauge unit is disposed on the mover 300.

Specifically, the utility model discloses in, hypervelocity superconducting motor compares with conventional motor, and the thrust that high-power superconducting linear electric motor produced is great, and is higher to each partial structural strength requirement of motor. The motor structural strength is required to be subjected to a thorough investigation test before the motor batch is produced. The structural strength test examines whether the structural bearing of the motor stator 200 and the mover 300 meets the use requirement when the motor stator and the mover are stressed maximally. And embedding a first strain foil unit at the position of a stator measuring point, embedding a second strain foil unit at the position of a rotor measuring point, and obtaining a strain value of each measuring point through an acquisition instrument. As a specific embodiment of the utility model, the spot position on stator and the active cell should all select the great place of prediction strain, the position that intensity is weak promptly.

Further, in the present invention, as shown in fig. 2, in order to measure the thrust generated by the mover at different positions, the second supporting platform 20 may be configured to have a plurality of limiting holes 20a, the plurality of limiting holes 20a are disposed at intervals, a gap is formed between the supporting rod 310 of the mover 300 and each of the limiting holes 20a along the first direction, and the supporting rod 310 of the mover 300 may selectively cooperate with any one of the limiting holes 20a to measure the thrust generated by the mover 300 at different positions.

As an embodiment of the present invention, as shown in fig. 2, the second supporting platform 20 has three limiting holes 20a, the stator 200 includes two stator coils, the mover 300 includes a mover coil, when the supporting rod 310 of the mover 300 is engaged with the limiting hole 20a located in the middle, the coil of the mover 300 corresponds to the center of the stator, and the thrust generated by the mover at the first position is measured. Similarly, when the support rod 310 of the mover 300 is fitted into the left stopper hole 20a while the coil of the mover 300 corresponds to the first coil of the stator, the thrust generated by the mover at the second position is measured. When the support rod 310 of the mover 300 is fitted to the right stopper hole 20a, the coil of the mover 300 corresponds to the second coil of the stator, and the thrust generated by the mover at the third position is measured. Thereby, the thrust measurements generated by the mover 300 at different positions can be completed.

Further, the utility model discloses in, in order to further improve the experimental security of stifled commentaries on classics, can configure stifled commentaries on classics test device into still including connecting plate 70, connecting plate 70 sets up simultaneously on the upper portion of first brace table 10 and second brace table 20 and is connected with first brace table 10 and second brace table 20 respectively. By applying the configuration mode, the motion of the rotor along the third direction, namely the z direction in fig. 1, can be limited, and the mode can limit the rotor and the stator in a small space range, so that the safety of the locked rotor test is improved.

Furthermore, the utility model discloses in, in order to improve the experimental security of stifled commentaries on classics still further, can configure stifled commentaries on classics test device to including a plurality of connecting plates 70, a plurality of connecting plates 70 interval sets up, and each connecting plate 70 is equallyd divide and is connected with first brace table 10 and second brace table 20 respectively. As a specific embodiment of the present invention, as shown in fig. 1, the rotation blocking device includes a first connecting plate 71, a second connecting plate 72, and a third connecting plate 73, and the first connecting plate 71, the second connecting plate 72, and the third connecting plate 73 are disposed at intervals on the upper portions of the first supporting table 10 and the second supporting table 20. In order to further improve the safety of the apparatus, the first support table 10 and the second support table 20 are disposed opposite to each other, the lower portion of the first support table 10 and the lower portion of the second support table 20 are connected to each other by a bottom plate, and the upper portion of the first support table 10 and the upper portion of the second support table 20 are spaced apart from each other. As a specific embodiment of the present invention, the first supporting table 10, the second supporting table 20 and the bottom plate are integrally formed.

Further, the utility model discloses in, in order to measure the produced thrust of the different clearance departments of active cell and stator, can configure stifled commentaries on classics test device to still include first adjusting shim plate 80, first adjusting shim plate 80 sets up between stator 200 and active cell 300, and first adjusting shim plate 80 is used for adjusting the clearance between stator 200 and the active cell 300.

As a specific embodiment of the utility model, first adjusting shim plate 80 comprises a plurality of adjusting shim, adjusts the gasket quantity between stator 200 and the active cell 300 according to actual need, when the produced thrust of little clearance department active cell is measured to needs, can reduce the gasket quantity between stator 200 and the active cell 300, and the gasket of taking out is placed between active cell and the second brace table in order to reduce the clearance between active cell and the stator. Here, the smaller the gap between the stator 200 and the mover 300 is, the greater the thrust generated by the mover 300 is.

Further, the utility model discloses in, in order to further improve the experimental security of stifled commentaries on classics, can configure stifled commentaries on classics test device to still include second backing plate 90, second backing plate 90 sets up between active cell 300 and second end plate, and second backing plate 90 is used for restricting active cell 300 along the removal of first direction orientation second end plate. As a specific embodiment of the present invention, as shown in fig. 1, the first direction is the x direction in fig. 1.

Furthermore, in the present invention, in order to further improve the safety of the locked rotor test, the locked rotor test device further includes a third pad 100, the third pad 100 is disposed between the force transmission unit 60 and the second supporting platform 20, and the third pad 100 is used to limit the movement of the mover 300 along the second direction. As a specific embodiment of the present invention, as shown in fig. 1, the second direction is the y direction in fig. 1.

further, in the present invention, in order to ensure the accuracy of the thrust measurement, the material of the first adjusting shim plate 80 may be configured to include teflon. As a specific embodiment of the present invention, the mechanical gap between the stator 200 and the mover 300 is adjusted by adjusting the number of the adjustment pads of the first adjustment pad 80 to test the motor performance under different mechanical gaps between the stator coil and the mover coil. The first adjusting base plate is made of polytetrafluoroethylene, the friction coefficient is 0.01, and in a thrust test, the first adjusting base plate can play a role in reducing the motion friction force of the rotor, so that the accuracy of the thrust is guaranteed.

For further understanding of the present invention, the following describes the locked rotor test device for the ultra-high speed superconducting linear motor in detail with reference to fig. 1 and 2.

As shown in fig. 1 and 2, according to the present invention, a stalling test device for an ultra-high speed superconducting linear motor is provided, which can be used to check the reasonableness and reliability of the structure and the process design of the stator coil and the rotor coil, obtain the stress, the temperature rise, the thrust output and the structural strength of the stator coil, and provide data support for the research of the linear motor. Specifically, in this embodiment, this locked rotor test device adopts the stainless steel sheet processing that intensity is high to form, satisfies the load requirement under all experimental operating modes. All parts of the device can be detached, the requirements of different test working conditions can be met, and meanwhile, different sensors can be equipped to obtain parameters of different performances of the motor.

The locked rotor test device comprises a first supporting platform 10, a second supporting platform 20, a first side plate 30, a second side plate 40, a load cell 50, a force transmission unit 60, a first connecting plate 71, a second connecting plate 72, a third connecting plate 73, a first adjusting base plate 80, a second base plate 90 and a third base plate 100, wherein a stator 200 is fixedly arranged on the first supporting platform 10, the first supporting platform 10 and the second supporting platform 20 are oppositely arranged, a rotor 300 is arranged on the second supporting platform 20, the rotor 300 is oppositely arranged with the stator 200, the second supporting platform 20 is provided with a limiting hole 20a, a gap exists between a supporting rod 310 and the limiting hole 20a of the rotor 300 along the x direction, the first side plate 30 is respectively connected with one side of the first supporting platform 10 and one side of the second supporting platform 20, the second side plate 40 is respectively connected with the other side of the first supporting platform 10 and the other side of the second supporting platform 20, the first side plate 30 and the second side plate 40 are used for ensuring the strength of the locked rotor test device, limiting the mover's movement in the x-direction. The stator 200 and the mover 300 are both located between the first side plate 30 and the second side plate 40, the load cell 50 is disposed on the first side plate 30, the force transmission unit 60 is connected to the load cell 50 and the mover 300, respectively, and the force transmission unit 60 is configured to transmit the thrust generated by the mover 300 in the x direction to the load cell 50.

The first connecting plate 71, the second connecting plate 72 and the third connecting plate 73 are arranged at intervals at the upper parts of the first supporting table 10 and the second supporting table 20, and the first connecting plate 71, the second connecting plate 72 and the third connecting plate 73 are used for ensuring the strength of the locked rotor test device and limiting the movement of the mover 300 along the z direction. The first connecting plate 71, the second connecting plate 72 and the third connecting plate 73 are of force bearing structures, and lifting by using a lifting appliance is allowed. The first adjusting shim plate 80 is composed of a plurality of adjusting shims, the number of the shims between the stator 200 and the mover 300 is adjusted according to actual needs, when thrust generated by the mover at a small gap position needs to be measured, the number of the shims between the stator 200 and the mover 300 can be reduced, and the taken-out shims are placed between the mover and the second support platform to reduce the gap between the mover and the stator. The second shim 90 is disposed between the mover 300 and the second end plate, and the second shim 90 serves to restrict movement of the mover 300 in the x-direction toward the second end plate. A third shim plate 100 is arranged between the force transfer unit 60 and the second support stage 20, the third shim plate 100 being used to limit the movement of the mover 300 in the y-direction.

When assembled, the stator and the mover of the linear motor are mounted to the first supporting stage 10 and the second supporting stage 20, respectively. The stator 200 can be matched with the positioning hole on the first supporting platform 10 through the positioning spigot, and the stator 200 is fixedly connected with the first supporting platform 10 through a plurality of bolts distributed around the positioning spigot. The mover 300 of the motor, i.e., the superconducting magnet, is mounted on the second support 20 of the stalling test apparatus, as shown in fig. 1, and when the thrust is tested, the degree of freedom of the mover in the x direction is released, and safety is taken into consideration, and the width of the stopper hole 20a in the x direction is slightly larger than that of the support rod of the mover. In the present embodiment, the second supporting stage 20 has three spaced position limiting holes 20a, and the three position limiting holes 20a are used for adjusting the position of the mover 300 to achieve the measurement of the thrust at different positions.

When a thrust test is performed, the thrust is mainly converted into the thrust or the pressure to be measured. After the stator 200 and the mover 300 are mounted on the first support stage 10 and the second support stage 20, respectively, the mover 300 is excited to supply power to the stator 200 through a power supply. At the moment, the magnetic fields of the motor stator 200 and the mover 300 interact with each other to generate thrust, and the thrust of the motor is obtained through the s-shaped pull pressure sensor. The motor thrust is displayed through a display instrument matched with the force transducer. Under different current supplies, obtain corresponding linear motor thrust to clear and determine motor thrust characteristic.

When the temperature rise test is carried out, the maximum allowable temperature rise of the coil is determined by the insulation grade of the motor, and if the maximum allowable temperature rise exceeds the limit, the insulation material is accelerated to age, and the service life of the insulation material is shortened. The coil heating is caused by power loss, and because the stator coil is electrified, the loss is generated and converted into heat energy, so that the temperature of each part of the motor is increased, and the temperature rise of the stator coil is related to the electrifying size and the electrifying time of the stator 200. In this example, a copper-constantan thermocouple was used as a temperature sensor, and temperature measurement was performed by the thermocouple method. During measurement, a plurality of temperature measuring elements are stuck and fixed at different positions of the stator coil when the stator 200 is produced. During testing, a temperature measuring instrument is adopted to continuously acquire the temperature change of the stator coil. The temperature rise of the coil is obtained by collecting the temperature of the coil before and after the coil is electrified. Through a temperature rise test, accurate coil temperature characteristics can be obtained, and reference is provided for reasonable design of the superconducting linear motor and improvement of a cooling system.

when the structural strength test is carried out, compared with a conventional motor, the high-power superconducting linear motor has larger thrust and higher requirements on the structural strength of each part of the motor. The motor structural strength is required to be subjected to a thorough investigation test before the motor batch is produced. The structural strength test examines whether the structural bearing of the motor stator 200 and the mover 300 meets the use requirement when the motor stator and the mover are stressed maximally. And embedding a first strain foil unit at the position of a stator measuring point, embedding a second strain foil unit at the position of a rotor measuring point, and obtaining a strain value of each measuring point through an acquisition instrument. As a specific embodiment of the utility model, the spot position on stator and the active cell should all select the great place of prediction strain, the position that intensity is weak promptly.

To sum up, the utility model provides a locked rotor test device for super speed superconducting linear electric motor, the device compare with prior art, and structural strength is high, and the structure mounting is nimble simple, and the cost is lower, the utility model discloses a device can be used to super speed superconducting linear electric motor's locked rotor test, can verify stator coil and superconducting rotor coil structure and process design's rationality, reliability, measures stator coil's stress, temperature rise, thrust output and structural strength, provides data support for superconducting linear electric motor's development, can examine stator coil and superconducting rotor coil mechanical structure and electromagnetic property under the different upwelling speed of stator coil on this frock. Furthermore, the utility model provides a device is provided with the three-way displacement of structures restriction active cell such as backing plate, curb plate and connecting plate, ensures the safety of reference personnel and peripheral equipment.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, 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, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A locked rotor test device for an ultra-high-speed superconducting linear motor is characterized by comprising:

The stator is fixedly arranged on the first supporting table (10);

The first supporting table (10) and the second supporting table (20) are arranged oppositely, the rotor is arranged on the second supporting table (20), the rotor is arranged oppositely to the stator, the second supporting table (20) is provided with a limiting hole (20a), and a gap is formed between a supporting rod of the rotor and the limiting hole (20a) along the first direction;

A first side plate (30), wherein the first side plate (30) is respectively connected with one side of the first supporting table (10) and one side of the second supporting table (20);

The second side plate (40), the second side plate (40) is respectively connected with the other side of the first supporting platform (10) and the other side of the second supporting platform (20), and the stator and the rotor are both positioned between the first side plate (30) and the second side plate (40);

A load cell (50), said load cell (50) disposed on said first side plate (30);

The force transmission unit (60) is respectively connected with the force measuring sensor (50) and the rotor, and the force transmission unit (60) is used for transmitting the thrust generated by the rotor along the first direction to the force measuring sensor (50).

2. the stall test apparatus for an ultra-high speed superconducting linear motor according to claim 1, further comprising a temperature sensor disposed on a coil of the stator.

3. The stall test apparatus for an ultra-high speed superconducting linear motor according to claim 1, further comprising a first strain gage unit and a second strain gage unit, the first strain gage unit being disposed on the stator, the second strain gage unit being disposed on the mover.

4. The stall test device for the ultra-high speed superconducting linear motor according to any one of claims 1 to 3, wherein the second support platform (20) has a plurality of limiting holes (20a), the plurality of limiting holes (20a) are arranged at intervals, a gap exists between the support rod of the mover and each limiting hole (20a) along the first direction, and the support rod of the mover selectively cooperates with any one of the limiting holes (20a) to measure the thrust generated by the mover at different positions.

5. The stall test device for the ultra-high speed superconducting linear motor according to claim 4, further comprising a connection plate (70), wherein the connection plate (70) is simultaneously disposed at upper portions of the first support stage (10) and the second support stage (20) and is connected to the first support stage (10) and the second support stage (20), respectively.

6. The stall test apparatus for an ultra-high speed superconducting linear motor according to claim 5, wherein the stall test apparatus comprises a plurality of the connection plates (70), the plurality of the connection plates (70) are arranged at intervals, and each of the connection plates (70) is connected to the first support table (10) and the second support table (20), respectively.

7. The stall test device for the ultra-high speed superconducting linear motor according to claim 6, further comprising a first adjusting shim plate (80), wherein the first adjusting shim plate (80) is disposed between the stator and the mover, and the first adjusting shim plate (80) is used for adjusting a gap between the stator and the mover.

8. The stall test device for an ultra-high speed superconducting linear motor according to claim 6, further comprising a second pad (90), wherein the second pad (90) is disposed between the mover and the second side plate (40), and wherein the second pad (90) is configured to restrict movement of the mover toward the second side plate (40) in the first direction.

9. the stall test device for ultra-high speed superconducting linear motors according to claim 6, further comprising a third pad (100), wherein the third pad (100) is disposed between the force transfer unit (60) and the second support stage (20), and the third pad (100) is used for limiting the movement of the mover in the second direction.

10. The stall test device for an ultra-high speed superconducting linear motor according to claim 7, wherein the load cell (50) comprises a tension and pressure sensor, and the material of the first adjusting shim plate (80) comprises polytetrafluoroethylene.