Magnetic levitation vehicle weighing and spring load measuring structure and measuring method

Abstract

This invention provides a weighing and spring load measurement structure for magnetic levitation vehicles, comprising a track system, a lifting mechanism, and a distance sensor. The track system includes a track and a skid support track. Along its extension direction, the track includes a fixed track and a movable track, with a force sensor mounted on the movable track. The lifting mechanism is connected to the movable track. The distance sensor detects the lifting distance of the lifting mechanism. The skid support track supports the vertical skid. The movable track lifts the bottom of the air spring and also lifts the support arm body. Compared with existing technologies, the weighing and spring load measurement structure and method for magnetic levitation vehicles provided by this invention can both weigh the vehicle and measure the air spring load, further facilitating air spring adjustment.

Description

Technical Field

[0001] This invention relates to the field of magnetic levitation vehicle technology, and in particular to a weighing and spring load measurement structure and method for magnetic levitation vehicles. Background Technology

[0002] Medium- and low-speed maglev trains are a new type of rail transit vehicle. The running gear of the vehicle consists of several structurally similar suspension frame modules. Each suspension frame module has air springs at its four ends to support the car body. Typically, each car has 5 suspension frame modules, with a total of 20 air springs connected to the car body.

[0003] Due to factors such as uneven load distribution, vehicle body deformation, and manufacturing errors of the air springs, the loads distributed on each air spring are not the same. When the load distribution of each air spring is uneven, it will result in a larger suspension load at the corresponding location, which will affect the normal operation of the vehicle.

[0004] Existing weighing devices for maglev vehicles use multi-point support structures to lift the vehicle's suspension module. Force sensors are installed in each support structure, and the vehicle's weight is obtained by accumulating the values ​​from each force sensor. Such devices can only provide the total weight of the vehicle and cannot measure the load on each air spring. Summary of the Invention

[0005] To address the technical problem that existing magnetic levitation vehicle weighing devices can only measure the total weight of the vehicle but cannot measure the load on the air springs, this invention provides a magnetic levitation vehicle weighing and spring load measurement structure. This structure can measure both the total weight of the vehicle and the load on the air springs, thus better meeting usage requirements.

[0006] A weighing and spring load measurement structure for a magnetic levitation vehicle includes a track system, a lifting mechanism, and a distance sensor;

[0007] The track system includes a track and a skid support track. The track includes a fixed track and a movable track along its extension direction. A force sensor is installed on the movable track, and the movable track can move in the vertical direction.

[0008] The lifting mechanism is connected to the movable track to drive the movable track to move vertically.

[0009] The distance sensor is used to detect the lifting distance of the lifting mechanism;

[0010] The suspension frame of the magnetic levitation vehicle includes a frame and support arms disposed at the four ends of the frame. Each support arm includes a support arm body, a vertical skid, and an air spring. The support arm body is connected to the frame, the vertical skid is connected to the support arm body, and the air spring is disposed on the support arm body, with the bottom of the air spring extending out of the bottom surface of the support arm body.

[0011] Each of the support arms is provided with a corresponding movable track, a lifting mechanism, and a distance sensor;

[0012] The sled support track is used to support the vertical sled;

[0013] The movable track is used to lift the bottom of the air spring, and the movable track is also used to lift the support arm body.

[0014] Preferably, it also includes a connecting support, through which the lifting mechanism is connected to the movable track.

[0015] Preferably, the distance sensor is disposed in the lifting mechanism.

[0016] Preferably, the force sensor is mounted on the upper surface of the movable track, and the detection surface of the force sensor is flush with the upper surface of the movable track.

[0017] Preferably, the support arm body includes a base and a mounting base;

[0018] The mounting base is disposed on the base, and the mounting base has a mounting cavity.

[0019] The air spring is installed in the mounting cavity, and the top of the air spring extends out of the mounting base;

[0020] The base has a through hole, which communicates with the mounting cavity;

[0021] The bottom of the air spring extends out of the bottom surface of the base through the through hole.

[0022] Preferably, the air spring includes an air spring body, an air spring base, and a protrusion;

[0023] The air spring body is installed in the mounting cavity, and the top of the air spring body extends out of the mounting base;

[0024] The air spring base is connected to the bottom of the air spring body, and the air spring base is located in the mounting cavity and abuts against the base;

[0025] The protrusion is connected to the air spring base and extends out of the bottom surface of the base through the through hole.

[0026] Preferably, the mounting base has an opening, which is provided at the point where the air spring base abuts against the base.

[0027] A method for measuring magnetic levitation vehicles includes the following steps:

[0028] S1. Move the magnetic levitation vehicle to the magnetic levitation vehicle weighing and spring load measuring structure as described in any of the above-mentioned steps;

[0029] S2, the magnetic levitation vehicle is launched and floated, and the skid support track supports the vertical skid on the magnetic levitation vehicle;

[0030] S3. The lifting mechanism lifts the movable track so that the movable track lifts the air spring or the support arm body for spring adjustment or weighing operations.

[0031] Preferably, step S3 specifically includes the following steps:

[0032] S311, The lifting mechanism lifts the movable rails until all the movable rails contact the bottom of the corresponding air springs;

[0033] S312. The lifting mechanism continues to lift the movable rails until all the movable rails have been lifted a certain distance by their corresponding air springs.

[0034] S313. Based on the readings of the force sensors on each of the movable tracks, adjust the lifting height of each of the lifting mechanisms so that the readings of the force sensors on each of the movable tracks are balanced.

[0035] S314. Record the lifting distance of the corresponding lifting mechanism through each of the distance sensors, and install a shim at the bottom of the corresponding air spring according to the recorded lifting distance.

[0036] Preferably, step S3 specifically includes the following steps:

[0037] S321. The lifting mechanism lifts the movable rails until all the movable rails lift the corresponding support arm bodies a certain distance.

[0038] S322. Read the readings of the force sensors on all the said active tracks.

[0039] Compared with the prior art, the magnetic levitation vehicle weighing and spring load measurement structure provided by the present invention includes a track system, a lifting mechanism, and a distance sensor; the track system includes a track and a skid support track, and the track includes a fixed track and a movable track along its extension direction, on which the movable track...

[0040] A force sensor is provided, and the movable track can move vertically. The lifting mechanism is connected to the movable track to drive the movable track to move vertically. The distance sensor is used to detect the lifting distance of the lifting mechanism. The suspension frame of the magnetic levitation vehicle includes a frame body and support arms disposed at four ends of the frame body. Each support arm includes a support arm body, a vertical skid, and an air spring. The support arm body is connected to the frame body, the vertical skid is connected to the support arm body, and the air spring is disposed on the support arm body, with its bottom extending beyond the bottom surface of the support arm body. Each support arm is correspondingly provided with one movable track, one lifting mechanism, and one distance sensor. The skid support track is used to support the vertical skid. The movable track is used to lift the bottom of the air spring and also to lift the support arm body. The magnetic levitation vehicle weighing and spring load measurement structure lifts the movable track via the lifting mechanism, thereby lifting the air spring or support arm body accordingly. Since the movable track is equipped with force sensors, it can directly measure the air spring load or weigh the entire vehicle, better meeting usage requirements. Simultaneously, each support arm is equipped with the movable track, the lifting mechanism, and the distance sensor. This allows for simultaneous measurement of the air spring load and adjustment of the lifting height using the force sensors. The distance sensors then read the lifting height of each lifting mechanism, facilitating air spring adjustment. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 A schematic diagram of a magnetic levitation vehicle weighing and spring load measurement structure provided in one embodiment;

[0043] Figure 2 for Figure 1 The diagram shows a structural schematic of a suspension frame corresponding to the weighing and spring load measurement structure of a magnetic levitation vehicle.

[0044] Figure 3 for Figure 1 The diagram shows a partial structural schematic of the weighing and spring load measurement structure for the magnetic levitation vehicle.

[0045] Figure 4 for Figure 2 The diagram shows the structure of the support arm in the suspension frame;

[0046] Figure 5 for Figure 4 A schematic diagram of the cross-sectional structure of the support arm shown.

[0047] Figure 6 A schematic diagram of the structure in which multiple measuring units are sequentially arranged in the weighing and spring load measurement structure for magnetic levitation vehicles;

[0048] Figure 7 for Figure 1 The diagram shows a planar structure of the magnetic levitation vehicle's weighing and spring load measurement structure, corresponding to the suspension frame.

[0049] Figure 8 for Figure 1 The diagram shows a cross-sectional structure of the magnetic levitation vehicle weighing and spring load measurement structure when the suspension frame is in a certain state.

[0050] Figure 9 for Figure 1 The diagram shows a cross-sectional view of the magnetic levitation vehicle weighing and spring load measurement structure when the suspension frame is in another state. Detailed Implementation

[0051] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0052] It should be noted that when a component is referred to as being "fixed to", "mounted to", or "set on" another component, it can be directly on or indirectly set on the other component; when a component is "connected" to another component, or a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0053] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0054] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application

[0055] In Chinese, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0056] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0057] This invention provides a weighing and spring load measurement structure for a magnetic levitation vehicle, comprising a track system, a lifting mechanism, and a distance sensor. The track system includes a track and a skid support track. The track, along its extension direction, includes a fixed track and a movable track. A force sensor is mounted on the movable track, and the movable track is movable vertically. The lifting mechanism is connected to the movable track to drive the movable track to move vertically. The distance sensor detects the lifting distance of the lifting mechanism. The suspension frame of the magnetic levitation vehicle includes a frame body and a spring load sensor mounted on the track. The frame has four support arms, each support arm comprising a support arm body, a vertical skid, and an air spring. The support arm body is connected to the frame, and the vertical skid is connected to the support arm body. The air spring is mounted on the support arm body, with its bottom extending beyond the bottom surface of the support arm body. Each support arm is equipped with a corresponding movable track, a lifting mechanism, and a distance sensor. The skid support track supports the vertical skid. The movable track lifts the bottom of the air spring and also lifts the support arm body. The magnetic levitation vehicle weighing and spring load measurement structure uses the lifting mechanism to lift the movable track, thereby lifting the corresponding air spring or support arm body. Because the movable track is equipped with a force sensor, it can directly measure the air spring load or weigh the entire vehicle, better meeting usage requirements. Meanwhile, each support arm is equipped with the movable track, the lifting mechanism, and the distance sensor. This allows for the measurement of the air spring load while simultaneously adjusting the lifting height using the force sensors. The distance sensor then reads the lifting height of each lifting mechanism, facilitating the adjustment of the air spring.

[0058] Please refer to the following: Figures 1 to 9 This embodiment provides a weighing and spring load measurement structure 100 for magnetic levitation vehicles, which can measure both the total weight of the vehicle and the load on the air springs.

[0059] The magnetic levitation vehicle weighing and spring load measuring structure 100 includes a track system 10, a lifting mechanism 20, and a distance sensor.

[0060] The track system 10 includes a track 11 and a skid support track 12. The track 11, along its extension direction, includes a fixed track 111 and a movable track 112. A force sensor 113 is installed on the movable track 112, and the movable track 112 can move vertically. Therefore, when the maglev vehicle is stationary on the maglev vehicle weighing and spring load measuring structure 100, the movement of the movable track 112 can lift corresponding components on the maglev vehicle, thereby enabling the measurement of corresponding data. Specifically, the fixed track 111 and the skid support track 12 are fixedly installed on the sleeper 200.

[0061] The lifting mechanism 20 is connected to the movable track 112 and is used to drive the movable track 112 to move vertically. That is, the lifting mechanism 20 provides the driving force for the vertical movement of the movable track 112. Specifically, the lifting mechanism 20 is disposed on the track bed 300.

[0062] The distance sensor is used to detect the lifting distance of the lifting mechanism 20.

[0063] The suspension frame 400 of the magnetic levitation vehicle includes a frame 410 and support arms 420 disposed at four ends of the frame 410. Each support arm 420 includes a support arm body 421, a vertical skid 422, and an air spring 423. The support arm body 421 is connected to the frame 410, the vertical skid 422 is connected to the support arm body 421, and the air spring 423 is disposed on the support arm body 421, with its bottom extending beyond the bottom surface of the support arm body 421. The air spring 423 is connected to the vehicle body at the top.

[0064] Each of the support arms 420 is provided with one movable track 112, one lifting mechanism 20, and one distance sensor. That is, for each individual suspension frame 400, the magnetic levitation vehicle weighing and spring load measuring structure 100 is provided with four movable tracks 112, four lifting mechanisms 20, and four distance sensors, thereby matching the support arms 420 at the four ends of the frame 410.

[0065] Understandably, in existing technology, each car in a maglev vehicle typically has five suspension frames. For example... Figure 6 As shown, the magnetic levitation vehicle weighing and spring load measuring structure 100 can be composed of multiple measuring units, thereby adapting to the suspension frame of each section of the magnetic levitation vehicle. Similarly, when measuring the entire vehicle, the measuring units in the magnetic levitation vehicle weighing and spring load measuring structure 100 are adapted to the magnetic levitation vehicle...

[0066] The number of suspension frames on each vehicle is the same, thus enabling measurement of the entire vehicle.

[0067] The skid support track 12 is used to support the vertical skid 422. Thus, when the magnetic levitation vehicle is launched, the vertical skid 422 on the suspension frame 400 falls onto the skid support track 12, and the skid support track 12 supports the entire vehicle.

[0068] The movable track 112 is used to lift the bottom of the air spring 423, and the movable track 112 is also used to lift the support arm body 421.

[0069] Since the maglev vehicle is supported by the skid support track 12 after it floats, and the bottom of the air spring 423 extends beyond the bottom surface of the support arm body 421, when the lifting mechanism 20 lifts the movable track 112, the movable track 112 will first contact the bottom of the air spring 423. As the lifting mechanism 20 continues to lift the movable track 112 upwards, it will lift the bottom of the air spring 423, thereby allowing the force sensor 113 on the movable track 112 to measure the load on the air spring 423. As the lifting mechanism 20 continues to lift the movable track 112 upwards, the movable track 112 will contact the bottom surface of the support arm body 421 until all the movable tracks 112 in the magnetic levitation vehicle weighing and spring load measuring structure 100 are in contact with the bottom surface of the corresponding support arm body 421, and all the support arm bodies 421 are pushed upwards a certain distance, so that all the vertical skids 422 are separated from the skid support track 12. At this time, the sum of all the force sensors 113 is the weight of the whole vehicle, realizing the weighing of the magnetic levitation vehicle.

[0070] In other words, the magnetic levitation vehicle weighing and spring load measuring structure 100 provided in this embodiment is used in conjunction with the suspension frame 400 provided in this embodiment. The lifting mechanism 20 drives the movable track 112 to rise and fall, thereby measuring the load of the air spring 423 on the suspension frame 400 and weighing the entire vehicle.

[0071] It is understandable that, since the magnetic levitation vehicle weighing and spring load measuring structure 100 is also equipped with distance sensors, the distance sensors can detect the lifting distance of the lifting mechanism 20 during operation. By obtaining the lifting distance of each lifting mechanism 20 from the distance sensors, the required spring adjustment amount for each air spring 423 can be determined, facilitating the spring adjustment operation of the air spring 423. After completing the measurement, all the lifting mechanisms 20 move downwards so that the movable track 112 is at the same height as the fixed track 111.

[0072] The track will be restored to its normal state, allowing maglev vehicles to pass normally.

[0073] In other words, the magnetic levitation vehicle weighing and spring load measuring structure 100 is set on the main track. During normal vehicle operation, the movable track 112 is adjusted to the same height as the fixed track 111 by the lifting mechanism 20. At this time, the magnetic levitation vehicle weighing and spring load measuring structure 100 is the same as the main track structure, and the magnetic levitation vehicle can operate normally on the magnetic levitation vehicle weighing and spring load measuring structure 100.

[0074] When the maglev vehicle needs to be measured, it first travels to a position where the vertical skid 422 is aligned with the skid support rail 12. Taking a single suspension frame 400 as an example, at this point, the vertical movement of the movable rail 112 will not interfere with the vertical skid 422. After reaching the position, the vehicle floats down, and the skid support rail 12 contacts the vertical skid 422 and provides support. Then, the movable rail 112 is lifted by the lifting mechanism 20 to measure the maglev vehicle.

[0075] The specific dimensions of the movable track 112, the fixed track 111, and the skid support track 12 can be adjusted according to the actual dimensions of the suspension frame 400.

[0076] Preferably, the magnetic levitation vehicle weighing and spring load measuring structure 100 further includes a connecting support 30, through which the lifting mechanism 20 is connected to the movable track 112. This better ensures the reliability of the connection between the lifting mechanism 20 and the movable track 112, and better ensures the lifting of the movable track 112 by the lifting mechanism 20.

[0077] Preferably, the distance sensor is disposed in the lifting mechanism 20, thereby enabling better detection of the lifting distance of the lifting mechanism 20. Specifically, the lifting mechanism 20 can employ various devices that provide vertical displacement, such as screws or hydraulic cylinders. The distance sensor can specifically be a stroke sensor. Of course, in other embodiments, the distance sensor can be the suspension gap sensor of the magnetic levitation vehicle itself, which measures the moving distance of the movable track 112 (i.e., the lifting distance of the lifting mechanism 20).

[0078] Preferably, the force sensor 113 is mounted on the upper surface of the movable track 112, and the detection surface of the force sensor 113 is flush with the upper surface of the movable track 112. This allows for better measurement of the vehicle's total weight and the load on the air spring position, and also better avoids affecting the normal operation of the vehicle.

[0079] Preferably, the support arm body 421 includes a base 4211 and a mounting base 4212, the mounting base...

[0080] Mounting element 4212 is mounted on the base 4211, and a mounting cavity 4213 is formed in the mounting base 4212. Air spring 423 is mounted in the mounting cavity 4213, and the top of air spring 423 extends out of the mounting base 4212. A through hole 4214 is formed on the base 4211, and the through hole 4214 communicates with the mounting cavity 4213. The bottom of air spring 423 extends out of the bottom surface of the base 4211 through the through hole 4214. This structure allows for better mounting of the air spring 423 on the support arm body 421, ensuring the reliability of the air spring 423's installation.

[0081] Preferably, the air spring 423 includes an air spring body 4231, an air spring base 4232, and a protrusion 4233. The air spring body 4231 is installed in the mounting cavity 4213, and the top of the air spring body 4231 extends out of the mounting base 4212. The air spring base 4232 is connected to the bottom of the air spring body 4231, and the air spring base 4232 is located in the mounting cavity 4212 and abuts against the base 4211. Thus, the air spring body 4231 is supported by the air spring base 4232 abutting against the base 4211. The protrusion 4233 is connected to the air spring base 4232 and extends out of the bottom surface of the base 4211 through the through hole 4214. Therefore, when the lifting mechanism 20 lifts the movable track 112, the movable track 112 contacts the corresponding protrusion 4233, and then the protrusion 4233 and the air spring base 4232 apply force to the air spring body 4231, thereby measuring the load on the air spring 423. Furthermore, by changing the distance between the bottom of the air spring body 4231 and the base 4211, the air spring 423 can be adjusted.

[0082] Preferably, the mounting base 4212 has an opening 4215, which is provided at the abutment point between the air spring base 4232 and the base 4211. Thus, during spring adjustment, a shim is inserted through the opening 4215, causing the shim to be sandwiched between the air spring base 4232 and the base 4211, thereby completing the adjustment of the air spring 423.

[0083] The magnetic levitation vehicle weighing and spring load measurement structure 100 provided in this embodiment is used to measure the load of each air spring in a medium- and low-speed magnetic levitation vehicle and can adjust the load of each air spring. At the same time, the structure can also measure the sprung weight and the total weight of the magnetic levitation vehicle.

[0084] The support arm body 421 provided in this embodiment is equipped with a stepped base, which allows for the measurement of air spring load and vehicle load by controlling the lifting height through the lifting mechanism. It also includes openings for mounting shims, enabling the measurement of the number of shims without separating the air spring from the suspension frame.

[0085] Adjustments were made.

[0086] This embodiment also provides a method for measuring magnetic levitation vehicles, which includes the following steps:

[0087] S1. Move the magnetic levitation vehicle to the magnetic levitation vehicle weighing and spring load measuring structure 100.

[0088] Specifically, the magnetic levitation vehicle travels to a position where the vertical skid 422 is aligned with the skid support track 12.

[0089] S2, the magnetic levitation vehicle is launched and floats, and the skid support track 12 supports the vertical skid 422 on the magnetic levitation vehicle, thereby providing support for the vehicle through the skid support track 12.

[0090] S3. The lifting mechanism 20 lifts the movable track 112 so that the movable track 112 lifts the air spring 423 or the support arm body 421 for spring adjustment or weighing operations.

[0091] Understandably, the travel distance of the lifting mechanism 20 can be selected according to the actual measurement purpose. When only the load on the air spring 423 needs to be measured or the air spring 423 needs to be adjusted, the travel distance of the lifting mechanism 20 can be set to only be against and lift the air spring 423. However, when the total weight of the vehicle needs to be measured, the travel distance of the lifting mechanism 20 can be made longer, so that the travel distance of the lifting mechanism 20 can reach and touch the support arm body 421.

[0092] Preferably, when the vehicle requires spring adjustment, step S3 specifically includes the following steps:

[0093] S311, The lifting mechanism 20 lifts the movable rails 112 until all the movable rails 112 are in contact with the bottom of the corresponding air springs 423.

[0094] Specifically, in this embodiment, the movable track 112 is in contact with the protrusion 4233.

[0095] S312, the lifting mechanism 20 continues to lift the movable rails 112 until all the movable rails 112 have lifted their corresponding air springs 423 a certain distance.

[0096] In this embodiment, the lifting distance of the air spring 423 by the movable track 112 is sufficient for the air spring 423 to undergo elastic deformation, allowing the force sensor 113 to detect the corresponding data. Specifically, in this embodiment, the movable track 112 lifts the protrusion 4233 and the air spring base 423 a certain distance, thereby compressing the air spring body 423. At this time, the sum of the readings of all the force sensors 113 is the sprung weight of the vehicle, and the sprung weight measurement of the vehicle is completed.

[0097] S313. Based on the readings of the force sensors 113 on each of the movable tracks 112, adjust the lifting height of each of the lifting mechanisms 20 so that the force sensors on each of the movable tracks 112...

[0098] The readings of sensor 113 have reached equilibrium.

[0099] S314. Record the lifting distance of the corresponding lifting mechanism 20 through each of the distance sensors, and install a shim at the bottom of the corresponding air spring 423 according to the recorded lifting distance 20.

[0100] Specifically, in this embodiment, during vehicle spring adjustment, the lifting height of each lifting mechanism 20 is adjusted based on the readings of each force sensor 113 to achieve a balanced reading. Then, the height adjustment amount at each point is recorded by the displacement sensor in the lifting mechanism 20, and the required shim thickness is determined based on the adjustment amount recorded by the displacement sensor. A shim of the corresponding thickness is added below the air spring base 4232 at the corresponding position through the opening 4215 on the side of the mounting base 4212, completing the vehicle spring adjustment.

[0101] Preferably, when the vehicle needs to be weighed, step S3 specifically includes the following steps:

[0102] S321, The lifting mechanism 20 lifts the movable rails 112 until all the movable rails 112 lift the corresponding support arm bodies 421 a certain distance;

[0103] Specifically, the lifting distance of the movable track 112 relative to the support arm body 421 is achieved only when all the vertical skids 422 are no longer in contact with the skid support track 12, at which point the vehicle weight is borne by all the movable tracks 112.

[0104] S322. Read the readings of the force sensors 113 on all the moving tracks 112 to determine the total weight of the vehicle.

[0105] Understandably, the vehicle weighing step can also be performed after the vehicle spring adjustment step.

[0106] The above description is merely an embodiment of the present invention. It should be noted that those skilled in the art can make improvements without departing from the inventive concept of the present invention, but these improvements all fall within the protection scope of the present invention.

Claims

1. A weighing and spring load measurement structure for a magnetic levitation vehicle, characterized in that, Includes the track system, lifting mechanism, and distance sensors; The track system includes a track and a skid support track. The track includes a fixed track and a movable track along its extension direction. A force sensor is installed on the movable track, and the movable track can move in the vertical direction. The lifting mechanism is connected to the movable track to drive the movable track to move vertically. The distance sensor is used to detect the lifting distance of the lifting mechanism; The suspension frame of the magnetic levitation vehicle includes a frame and support arms disposed at the four ends of the frame. Each support arm includes a support arm body, a vertical skid, and an air spring. The support arm body is connected to the frame, the vertical skid is connected to the support arm body, and the air spring is disposed on the support arm body, with the bottom of the air spring extending out of the bottom surface of the support arm body. Each of the support arms is provided with a corresponding movable track, a lifting mechanism, and a distance sensor; The sled support track is used to support the vertical sled; The movable track is used to lift the bottom of the air spring, and the movable track is also used to lift the support arm body.

2. The magnetic levitation vehicle weighing and spring load measurement structure according to claim 1, characterized in that, It also includes a connecting support, through which the lifting mechanism is connected to the movable track.

3. The magnetic levitation vehicle weighing and spring load measurement structure according to claim 1, characterized in that, The distance sensor is located in the lifting mechanism.

4. The magnetic levitation vehicle weighing and spring load measurement structure according to claim 1, characterized in that, The force sensor is mounted on the upper surface of the movable track, and the detection surface of the force sensor is flush with the upper surface of the movable track.

5. The magnetic levitation vehicle weighing and spring load measurement structure according to claim 1, characterized in that, The support arm body includes a base and a mounting bracket; The mounting base is disposed on the base, and the mounting base has a mounting cavity. The air spring is installed in the mounting cavity, and the top of the air spring extends out of the mounting base; The base has a through hole, which communicates with the mounting cavity; The bottom of the air spring extends out of the bottom surface of the base through the through hole.

6. The magnetic levitation vehicle weighing and spring load measurement structure according to claim 5, characterized in that, The air spring includes an air spring body, an air spring base, and a protrusion; The air spring body is installed in the mounting cavity, and the top of the air spring body extends out of the mounting base; The air spring base is connected to the bottom of the air spring body, and the air spring base is located in the mounting cavity and abuts against the base; The protrusion is connected to the air spring base and extends out of the bottom surface of the base through the through hole.

7. The magnetic levitation vehicle weighing and spring load measuring structure according to claim 6, characterized in that, The mounting base has an opening, which is provided at the point where the air spring base abuts against the base.

8. A method for measuring magnetic levitation vehicles, characterized in that, Includes the following steps: S1. Move the magnetic levitation vehicle to the magnetic levitation vehicle weighing and spring load measuring structure as described in any one of claims 1 to 7; S2, the magnetic levitation vehicle is launched and floated, and the skid support track supports the vertical skid on the magnetic levitation vehicle; S3. The lifting mechanism lifts the movable track so that the movable track lifts the air spring or the support arm body for spring adjustment or weighing operations.

9. The method for measuring magnetic levitation vehicles according to claim 8, characterized in that, Step S3 specifically includes the following steps: S311, The lifting mechanism lifts the movable rails until all the movable rails contact the bottom of the corresponding air springs; S312. The lifting mechanism continues to lift the movable rails until all the movable rails have been lifted a certain distance by their corresponding air springs. S313. Based on the readings of the force sensors on each of the movable tracks, adjust the lifting height of each of the lifting mechanisms so that the readings of the force sensors on each of the movable tracks are balanced. S314. Record the lifting distance of the corresponding lifting mechanism through each of the distance sensors, and install a shim at the bottom of the corresponding air spring according to the recorded lifting distance.

10. The method for measuring magnetic levitation vehicles according to claim 8, characterized in that, Step S3 specifically includes the following steps: S321. The lifting mechanism lifts the movable rails until all the movable rails lift the corresponding support arm bodies a certain distance. S322. Read the readings of the force sensors on all the said active tracks.

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