A test levitation vehicle lateral movement / force measuring device and method

Abstract

The application discloses a test magnetic levitation vehicle body transverse movement / measuring force device, which comprises a stator mounting support, a transverse pushing mechanism and an adjustable measuring force mechanism; the transverse pushing mechanism comprises two movable trolleys arranged in parallel, and a positioning plate and an L-shaped support plate are fixed on the bottom plate of the movable trolleys; one base is arranged on each movable trolley, and a SWL-type elevator is horizontally arranged between the corresponding base and the L-shaped support plate; the base is fixedly connected to the side surface of the base, and the lifting screw rod end of the SWL-type elevator is fixedly connected to the L-shaped support plate through a flange. The application has the advantages of reasonable design, reduced test room space occupancy through transverse movement, effective control of vehicle body deviation, and convenient vehicle body guide force measurement. The adjustable force measuring device can realize guide force measurement under different deviation amounts and can also realize traction force measurement.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of test magnetic levitation vehicle body assembly and performance testing, and particularly relates to a test magnetic levitation vehicle body transverse moving / measuring force device and method. BACKGROUND

[0002] Rail transportation is developing towards high speed, low energy consumption, low noise and high stability, and high-speed magnetic levitation transportation equipment technology is continuously researched. For full-speed and multi-mode magnetic levitation technology, performance verification and dynamic simulation of the magnetic levitation system need to be carried out in the laboratory. Due to the limitation of the assembly space between the mover of the linear motor on the vehicle body and the stator on the track, it is not easy to move the vehicle body into and out of the stator using a crown block. The performance verification of the magnetic levitation system includes the test of the suspension force, the traction force and the guide force. At present, there are relatively few convenient and reasonable methods for adjusting the vehicle body offset to realize the test of the traction force and the guide force. SUMMARY

[0003] The application aims to provide a novel test magnetic levitation vehicle body transverse moving / measuring force device and method, which can push the vehicle body into and out of the stator and realize the measurement of the traction force and the guide force under the vehicle body offset.

[0004] The application is implemented by using the following technical scheme:

[0005] A test magnetic levitation vehicle body transverse moving / measuring force device comprises a stator mounting bracket, a transverse pushing mechanism and an adjustable measuring force mechanism.

[0006] The transverse pushing mechanism comprises two movable trolleys arranged in parallel, and a positioning plate and an L-shaped support plate are fixed on the bottom plate of each movable trolley; each movable trolley is provided with a base, and a SWL-type elevator is horizontally arranged between the corresponding base and the L-shaped support plate; the base is fixedly connected to the side surface of the base, and the lifting screw end of the SWL-type elevator is fixedly connected to the L-shaped support plate through a flange.

[0007] A plurality of test tracks are arranged in parallel at the bottom of the stator mounting bracket; the two movable trolleys are located between the corresponding test tracks; and the two bases are fixed to the corresponding test tracks through the respective base plates.

[0008] The adjustable measuring force mechanism comprises a flower basket bolt, the two ends of the flower basket bolt are connected with eye bolts, the eye bolt at one end is connected with the vehicle body, and the eye bolt at the other end is connected with the fixed plate on the stator mounting bracket through a tension and compression force sensor.

[0009] Further preferably, the back surface of the base is provided with a reinforcing rib plate.

[0010] Further preferably, the long stator and electromagnet of the linear motor are fixedly installed on the stator mounting bracket, and the mover is installed on the vehicle body.

[0011] Further preferably, the two SWL type elevators are connected through a transmission shaft.

[0012] Further preferably, the front portions of the several test tracks are jointly connected with a fixed cross beam.

[0013] Further preferably, the movable trolley passes between the columns of the stator mounting bracket.

[0014] The present application specifically comprises a vehicle body lateral pushing and adjustable force measuring device, which completes the assembly of the vehicle body and the track, and also realizes the test of the force. The lateral pushing mode is adopted to push the vehicle body into the track laterally, which reduces the space occupancy of the test room compared with longitudinal pushing; and the lateral pushing device can control the offset amount of the vehicle body, and the test of the guiding force is completed with the help of the adjustable force measuring device. The adjustable force measuring device can also realize the measurement of the traction force.

[0015] In application, the long stator and electromagnet of the linear motor are fixedly installed on the stator mounting bracket, and the mover is installed on the vehicle body. The movable trolley passes between the columns of the stator mounting bracket. The power source of the vehicle body lateral pushing mechanism is derived from the SWL type elevator, and the base and the base plate installed through the elevator are fixed on the test track. The positioning plate and the L-shaped support plate on the movable trolley are fixed on the bottom plate through bolts, and the waist hole is opened on the bottom plate to adjust the distance between the positioning plate and the L-shaped support plate. The movable trolley is connected with the flange plate of the SWL type elevator through bolts. The moved vehicle body falls into the groove of the positioning plate and the L-shaped support plate of the movable trolley, and the lateral controllable distance movement of the vehicle body is realized through the two linkage SWL type elevators. One end of the adjustable distance force measuring device is connected with the screw hole of the vehicle body through a lifting ring screw, and the other end is connected with the fixed plate between the columns of the stator mounting bracket outside the vehicle body through bolts; the length is adjusted through the basket bolt, which is used for the measurement of the vehicle guiding force under different offset amounts.

[0016] A test method for lateral movement and guiding force of a magnetic levitation vehicle body, comprising the following steps:

[0017] (1) Vehicle body lateral pushing device assembly: first, the bases installed through the elevators are fixed on the test track through the base plate, then the machine seat of the SWL type elevator is horizontally fixed on the base, and finally the lifting screw end of the SWL type elevator is connected with the L-shaped support plate of the movable trolley through the flange;

[0018] (2) The single-side test magnetic levitation vehicle body is placed on the L-shaped support plate and the positioning plate of the movable trolley through the crown block;

[0019] (3), through two linkage SWL type lift the car body into the stator installation bracket stator below, motor power car body suspended after, the movable trolley is withdrawn, realize the push-in of car body;

[0020] (4), need to measure the motor guide force, the motor is powered off, the car body falls on the L-shaped support plate and the positioning plate of the movable trolley; through two linkage SWL type lift the car body to the required distance;

[0021] (5), the eyelet screw of one end of the adjustable distance force measuring mechanism is connected with the car body, and the tension and pressure sensor of the other end is connected with the fixed plate located in the column;

[0022] (6), the length is adjusted through the basket bolt, and the motor is powered on to realize the guide force measurement.

[0023] The present application has the following advantages: (1), the lateral movement only needs to reserve the width size of the car body, reduces the space occupancy rate of the laboratory. (2), the lateral push can effectively control the offset amount of the car body, and facilitates the car body guide force measurement. (3), the adjustable force measuring mechanism can realize the measurement of the guide force under different offset amounts. (4) the adjustable force measuring mechanism can also realize the measurement of the traction force.

[0024] The present application has the following advantages: (1), the lateral movement only needs to reserve the width size of the car body, reduces the space occupancy rate of the laboratory. (2), the lateral push can effectively control the offset amount of the car body, and facilitates the car body guide force measurement. (3), the adjustable force measuring mechanism can realize the measurement of the guide force under different offset amounts. (4) the adjustable force measuring mechanism can also realize the measurement of the traction force. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The front view of the test magnetic levitation car body lateral movement and force measuring device installation is shown.

[0026] Figure 2 The back view of the test magnetic levitation car body lateral movement and force measuring device installation is shown.

[0027] Figure 3 The schematic diagram of the car body lateral push mechanism is shown.

[0028] Figure 4 The schematic diagram of the adjustable distance force measuring mechanism is shown.

[0029] Figure 5 The schematic diagram of the car body lateral push embodiment is shown.

[0030] Figure 6 The schematic diagram of the car body guide force measurement embodiment is shown.

[0031] In the diagram: 1-Stator mounting bracket, 10-Column, 11-Fixing plate; 2-Transverse pushing mechanism, 20-Movable trolley, 21-Base plate, 22-Positioning plate, 23-L-shaped support plate, 24-Base, 25-Base plate, 26-Reinforcing rib, 27-Drive shaft, 28-SWL lifting platform, 281-Base, 282-Lifting screw, 283-Flange; 3-Adjustable force measuring mechanism, 31-Turn bolt, 32-Eye bolt, 33-Tension / compression sensor; 4-Test track, 40-Crossbeam; 5-Car body. Detailed Implementation

[0032] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0033] A test magnetic levitation vehicle body lateral movement / force measuring device includes a stator mounting bracket 1, a lateral pushing mechanism 2, and an adjustable force measuring mechanism 3.

[0034] like Figure 3 As shown, the lateral pushing mechanism 2 includes two parallel movable trolleys 20 and an SWL-type lift 28. A positioning plate 22 and an L-shaped support plate 23 are fixed to the base plate 21 of each movable trolley 20. Each movable trolley 20 has a corresponding base 24, with reinforcing ribs 26 on its back. An SWL-type lift 28 (for lateral pushing) is horizontally positioned between the corresponding base 24 and the L-shaped support plate 23. The base 281 of the SWL-type lift 28 is fixedly connected to the side of the base 24, and the end of the lifting screw 282 of the SWL-type lift 28 is fixedly connected to the L-shaped support plate 23 via a flange 283. The two SWL-type lifts 28 can be connected via a drive shaft 27 for linkage. In application, the vehicle body to be moved is placed in the slot (positioning plate and L-shaped support plate) of the movable trolley, and the SWL-type lift achieves a quantitative lateral movement of the vehicle body.

[0035] like Figure 1 , 2 As shown, several test tracks 4 are laid parallel to each other at the bottom of the stator mounting bracket 1; the front of the test tracks 4 are connected to a fixed crossbeam 40 to increase stability. Two movable trolleys 20 are located between the corresponding test tracks 4; two bases 24 are fixed to the corresponding test tracks 4 by their respective base plates 25.

[0036] like Figure 4As shown, the adjustable force measuring mechanism 3 includes a basket bolt 31, a lifting ring screw 32 and an S-shaped tension and pressure sensor 33. The two ends of the basket bolt 31 are connected with the lifting ring screws 32 respectively. The lifting ring screw 32 at one end is connected with the vehicle body 5, and the lifting ring screw 32 at the other end is connected with the fixing plate 11 on the stator mounting bracket 1 through the tension and pressure sensor 33. During the test, two sets of adjustable force measuring mechanisms 3 are used to adjust the length through the basket bolt 7 to measure the guiding force of the vehicle body under different offsets.

[0037] The following is an example of a single-side test maglev vehicle body with a length of 3 meters, a width of 0.67 meters and a weight of 4 tons. The long stator and electromagnet of the linear motor are fixed on the support bracket, and the mover is installed on the vehicle body. When the motor is not powered, the vehicle body falls on the track below the support bracket. The assembly gap between the mover and the stator of the linear motor is less than 2 cm. The vehicle body cannot be pushed into or out from under the stator using a crane, and the vehicle body offset cannot be adjusted when the motor is not powered, so the guiding force cannot be measured.

[0038] The vehicle body lateral pushing mechanism is assembled. First, the base plate and base of the two elevators are fixed on the track, then the SWL-type elevator is fixed on the base of the elevator installation, and finally the SWL-type elevator is connected with the L-shaped support plate of the movable trolley. The single-side test maglev vehicle body is placed on the L-shaped support plate and positioning plate of the movable trolley using a crane. The vehicle body is pushed into the stator below by two linked SWL-type elevators, and the movable trolley is removed after the vehicle body is suspended when the motor is powered on, realizing the pushing of the vehicle body. When the motor guiding force needs to be measured, the motor is powered on, and the vehicle body is placed on the L-shaped support plate and positioning plate of the movable trolley after the vehicle body is suspended. The vehicle body is moved laterally to the required distance by two linked SWL-type elevators. The lifting ring screw of the adjustable distance force measuring mechanism is connected with the vehicle body, and the tension and pressure sensor is connected with the column fixing plate. The length is adjusted by the basket bolt, and the guiding force measurement is realized after the motor is powered on.

[0039] A test method for lateral movement and guiding force of a maglev vehicle body, comprising the following steps:

[0040] (1) Vehicle body lateral pushing device assembly: first, the base 24 of the two elevator installations is fixed on the test track 4 through the base plate 25, then the machine base 281 of the SWL-type elevator 28 is horizontally fixed on the base 24, and finally the lifting wire rod 282 end of the SWL-type elevator 28 is connected with the L-shaped support plate 23 of the movable trolley 20 through the flange 283;

[0041] (2) The single-side test maglev vehicle body 5 is placed on the L-shaped support plate 23 and positioning plate 22 of the movable trolley 20 using a crane;

[0042] (3) The car body 5 is pushed into the lower part of the stator of the stator mounting bracket 1 by two SWL type lifters 28, and the movable trolley 20 is removed after the car body is suspended by the power-on motor, so as to realize the pushing of the car body;

[0043] (4) When the motor guiding force needs to be measured, the motor is powered off, and the car body is placed on the L-shaped support plate 23 and the positioning plate 22 of the movable trolley 20; the car body is moved to the required distance by two SWL type lifters 28;

[0044] (5) The eye bolt 32 at one end of the adjustable distance force measuring mechanism 3 is connected with the car body 5, and the tension and compression force sensor 33 at the other end is connected with the fixed plate 11 of the stand column;

[0045] (6) The length is adjusted by the basket bolt 31, and the guiding force is measured after the motor is powered on.

[0046] In specific application, the SWL type lifters can be replaced by other types of lifters, and the performance of the lifters is selected according to the pushing weight and the number of used lifters; the eye bolt, the basket bolt and the tension and compression force sensor are selected according to the size of the required measured force and the number of used adjustable distance force measuring devices.

[0047] Finally, it should be explained that the above examples are only used to illustrate the technical solutions of the present application and are not limited. Although the present application is described in detail, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the present application, and they should be covered by the protection scope of the claims of the present application.

Claims

1. A test magnetic levitation vehicle body lateral movement / force measuring device, characterized in that: It includes a stator mounting bracket (1), a transverse pushing mechanism (2), and two sets of adjustable force measuring mechanisms (3); The lateral pushing mechanism (2) includes two parallel movable trolleys (20). A positioning plate (22) and an L-shaped support plate (23) are fixed on the base plate (21) of each movable trolley (20). Each movable trolley (20) is provided with a base (24). An SWL type elevator (28) is horizontally arranged between the corresponding base (24) and the L-shaped support plate (23). The base (281) of the SWL type elevator (28) is fixedly connected to the side of the base (24). The end of the lifting screw (282) of the SWL type elevator (28) is fixedly connected to the L-shaped support plate (23) through a flange (283). The two SWL type elevators (28) are connected by a drive shaft (27). The stator mounting bracket (1) has several test tracks (4) laid parallel to each other at its bottom; two movable trolleys (20) are located between the corresponding test tracks (4); two bases (24) are fixed to the corresponding test tracks (4) by their respective base plates (25); the long stator of the linear motor and the electromagnet are fixedly installed on the stator mounting bracket (1), and the mover is installed on the maglev car body (5); The adjustable force measuring mechanism (3) includes a turnbuckle (31), with eye bolts (32) connected to both ends of the turnbuckle (31). The eye bolt (32) at one end is connected to the maglev car body (5), and the eye bolt (32) at the other end is connected to the fixing plate (11) on the stator mounting bracket (1) through a tension and compression sensor (33).

2. The experimental magnetic levitation vehicle body lateral movement / force measuring device according to claim 1, characterized in that: The base (24) has a reinforcing rib (26) on its back.

3. The experimental magnetic levitation vehicle body lateral movement / force measuring device according to claim 2, characterized in that: Several test tracks (4) are connected together by a fixed crossbeam (40) at the front.

4. The experimental magnetic levitation vehicle body lateral movement / force measuring device according to claim 3, characterized in that: The movable trolley (20) passes between the columns (10) of the stator mounting bracket (1).

5. A test method for the lateral movement / force measuring device of the test maglev car body as described in claim 1, as follows: (1) Assembly of the lateral propulsion device of the maglev car body: First, fix the base (24) of the two elevators on the test track (4) through the base plate (25), then fix the base (281) of the SWL type elevator (28) horizontally on the base (24), and finally connect the end of the lifting screw (282) of the SWL type elevator (28) to the L-shaped support plate (23) of the movable trolley (20) through the flange (283); (2) Use an overhead crane to place the single-sided test maglev car body (5) on the L-shaped support plate (23) and positioning plate (22) of the movable trolley (20); (3) The maglev car body (5) is pushed into the stator of the stator mounting bracket (1) by two linked SWL type elevators (28). After the motor is turned on and the maglev car body (5) is suspended, the movable trolley (20) is removed to realize the pushing of the maglev car body (5). (4) When it is necessary to measure the motor guiding force, turn off the motor and place the maglev car body (5) on the L-shaped support plate (23) and positioning plate (22) of the movable car (20); move the maglev car body (5) laterally to the required distance by two linked SWL type elevators (28); (5) Connect the eye bolt (32) at one end of the adjustable distance force measuring mechanism (3) to the maglev car body (5), and connect the tension and compression sensor (33) at the other end to the fixing plate (11) located on the column. (6) The length is adjusted by turnbuckle (31), and the guiding force is measured after the motor is powered on.

Images