CN210090044U - Multifunctional suspension guide principle test device - Google Patents

Abstract

The utility model provides a multi-functional suspension direction principle test device which characterized in that includes: test bench skeleton (1) and install clearance sensor (2), electro-magnet (3), guide rail (12) and acceleration sensor (15) on test bench skeleton (1), test bench skeleton (1) is used for bearing whole testing device's weight, electro-magnet (3) configure into after the circular telegram again with produce electromagnetic suction between guide rail (12) and constitute closed magnetic circuit, clearance sensor (2) are configured to measure the suspension clearance between electro-magnet (3) and guide rail (12), acceleration sensor (15) are configured to measure the acceleration of motion of guide rail (12).

Description

Multifunctional suspension guide principle test device

Technical Field

The utility model relates to a magnetism floats principle test field, in particular to suspension direction principle test device.

Background

The suspension technology and the guiding technology are basic technologies and core technologies of the magnetic-levitation train, and the quality of suspension and guiding directly relates to whether the safe operation of the train can be realized, so that the method has important research significance. The research on the suspension technology and the guidance technology of the maglev train is usually carried out on equal-proportion bogies or needs real test trains and test lines, so that the early-stage capital investment and the labor investment are quite large, multi-department cooperative operation is needed, the test period is long, and a good test effect is difficult to obtain in a short time.

Therefore, in order to improve the research and development efficiency and shorten the research and development cycle, a brand new multifunctional suspension guide principle test device needs to be developed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose is in order to shorten test condition preparation cycle by a wide margin, provides a brand-new multi-functional suspension direction principle test device, and it can simulate the different operating modes of train operation in-process to can develop the special study to the core control algorithm of suspension technique, direction technique, thereby improve research and development efficiency, shorten the development cycle, establish the basis for the follow-up vehicle level debugging of developing the maglev train.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a multifunctional suspension guide principle test device comprises: the test bed framework and install gap sensor, electro-magnet, guide rail and acceleration sensor on the test bed framework, the test bed framework is used for bearing the weight of whole test device, the electro-magnet configure into after the circular telegram again with produce electromagnetic attraction and constitute closed magnetic circuit between the guide rail, gap sensor configures into the suspension clearance of measuring between electro-magnet and the guide rail, acceleration sensor configures into the motion acceleration of measuring the guide rail.

Further, the test device comprises a rotating support, the rotating support is arranged to rotate around a rotating shaft, the guide rail is fixed on the rotating support, and when the rotating support rotates, the guide rail is driven to be far away from or close to the electromagnet.

Further, the testing device includes two sets of suspension direction test mechanisms, and every group suspension direction test mechanism includes: the device comprises a group of electromagnets arranged up and down, a group of guide rails arranged up and down, a group of gap sensors, a group of acceleration sensors, a group of mounting supports, a group of rotating supports, a group of gap sensor supports and a group of flange plates.

Furthermore, the ring flange is fixed on the test bench skeleton and the trompil is used for rotationally installing the axis of rotation, the electro-magnet is fixed on the installing support, gap sensor installs on the gap sensor support, gap sensor support fixes on the installing support, acceleration sensor installs on the guide rail.

Further, each set of electromagnets arranged one above the other contains 4 electromagnets, more specifically, 2 electromagnets arranged one above the other.

Further, each set of rails arranged one above the other comprises 4 rails, more specifically, 2 rails arranged one above the other.

Furthermore, each group of gap sensors comprises 4 gap sensors, wherein 1 gap sensor is respectively arranged at the upper part and the lower part of the position close to the rotating shaft, and 1 gap sensor is respectively arranged at the upper part and the lower part of the position far away from the rotating shaft.

Furthermore, each group of acceleration sensors comprises 4 acceleration sensors, wherein 1 acceleration sensor is arranged at the upper part and the lower part of the acceleration sensor close to the rotating shaft, and 1 acceleration sensor is arranged at the upper part and the lower part of the acceleration sensor far away from the rotating shaft.

Further, the test device comprises a plurality of flexible connecting rods, and the flexible connecting rods are used for connecting or disconnecting the two groups of suspension guide test mechanisms.

Further, the test device comprises a lifting hook which is fixed on the flexible connecting rod, weights can be hung on the lifting hook, and more specifically, the test device can change the suspended mass in a mode of increasing or reducing the weights and simulate the fluctuation of the load of the train.

Furthermore, a flexible gasket is arranged on the mounting bracket and used for preventing the rotating bracket from rigidly colliding with the electromagnet when the guide rail rotates.

Further, the rotating shaft is detachably mounted in the hole of the flange.

Further, the testing device comprises a handle, and the handle is arranged on the rotating support.

Further, the handle is used for rotating the rotating support and driving the guide rail, applying load and/or measuring electromagnetic attraction force.

Further, the testing device comprises a power supply and a driving and control unit, wherein the power supply is used for supplying power to the electromagnet, the gap sensor and the driving and control unit, and more specifically, the driving and control unit is internally provided with a current sensor for measuring the current of the electromagnet. The driving and control unit is used for controlling the voltage or the current of the electromagnet.

The utility model discloses a design a multi-functional suspension direction principle test device, through the configuration of difference, realized many-sided effect. The utility model discloses the device can be carried out single-point suspension technical research, single-point direction technical research and four-point suspension research, and each but a plurality of independent test device of split into realizes. Meanwhile, the running working condition of the magnetic-levitation train can be simulated, and the suspension technology research, the anti-interference research and the like of the lap joint structure can be carried out. The test device has the advantages of simple operation, complete functions, convenient maintenance, short production period and low manufacturing cost, can quickly meet the principle research requirements of the suspension technology and the guidance technology of the normally-conductive electromagnetic suction type magnetic-levitation train, and lays a foundation for the subsequent vehicle-level debugging on the magnetic-levitation train.

Drawings

The foregoing technical content of the present invention as well as the following detailed description of the present invention will be better understood when read in conjunction with the accompanying drawings. It is to be noted that the figures are only intended as examples of the claimed solution. In the drawings, like reference characters designate the same or similar elements.

FIG. 1 is a front view of the multifunctional suspension guiding principle test device of the present invention;

FIG. 2 is a three-dimensional axial view of the multifunctional suspension guiding principle test device of the present invention;

fig. 3 is a top view of the multifunctional suspension guiding principle testing device of the present invention.

Wherein the reference numerals are as follows:

1 test bed framework

2 sensor

3 electromagnet

4 handle

5 weight

6 rotating bracket

7 power supply

8 drive and control unit

9 Flexible connecting rod

10 mounting bracket

11 rotating shaft

12 guide rail

13 Flexible gasket

14 lifting hook

15 acceleration sensor

16 clearance sensor support

17 flange plate

Detailed Description

The detailed features and advantages of the present invention are described in the detailed description which follows, and will be readily apparent to those skilled in the art from that description or recognized by practicing the invention as described herein, together with the objects and advantages thereof.

The multifunctional suspension guide principle test device shown in fig. 1, 2 and 3 comprises a test bed framework 1, two groups of suspension guide test mechanisms, a flexible connecting rod 9, a power supply 7 and a driving and control unit 8.

The test bed framework 1 is used for bearing the weight of the whole test device, and has certain structural strength, so that installation fixing interfaces are provided for other parts.

The suspension guide test mechanism is a mechanism with a suspension function and a guide function, and the two groups of suspension guide test mechanisms are completely the same. Each group of suspension guide test mechanism comprises a gap sensor 2, an acceleration sensor 15, an electromagnet 3, a rotating support 6, a gap sensor support 16, a flange plate 17, a mounting support 10 and a guide rail 12. Wherein, each group of the rotating brackets is 2, and the rotating bracket 6 can rotate around a rotating shaft 11. Each group of guide rails 12 is 4 in number and is respectively fixed on the rotating bracket 6, and when the rotating bracket 6 rotates, the guide rails 12 are driven to be far away from or close to the electromagnet 3. Each group of suspension guide test mechanism comprises 4 electromagnets 3 which are vertically arranged, and the electromagnets 3 are used for generating electromagnetic attraction between the electromagnets and the guide rail 12 after being electrified. Every group suspension direction test mechanism includes a set of gap sensor 2, gap sensor 2 is used for measuring the suspension clearance between electro-magnet 3 and guide rail 12, and every group sensor 2 totally 4 respectively sets up 1 about being close to the position of axis of rotation 11, respectively sets up 1 about keeping away from the position of axis of rotation 11, and gap sensor 2 installs on gap sensor support 16, and gap sensor support 16 fixes on installing support 10. Each set of acceleration sensors 15 includes 4 acceleration sensors 15, 1 acceleration sensor is provided at a position close to the rotation shaft 11, and 1 acceleration sensor is provided at a position away from the rotation shaft 11, and the acceleration sensors 15 are mounted on the guide rail 12. Every group installing support 10 is totally 2, be equipped with 4 flexible liner 13 on the installing support 10 for when guide rail 12 rotates, can prevent to rotate support 6 and electro-magnet 3 and take place the rigidity collision, play the cushioning effect, protect parts not damaged. Each group of flanges 17 comprises 1 flange 17 and is fixed on the test bed framework 1, and the opening on the flange 17 is used for rotating the rotating shaft 11. The rotatable shaft 11 is removably mounted in an aperture in the flange 17.

The flexible connecting rods 9 are used for connecting or disconnecting two groups of suspension guide test mechanisms, the number of the flexible connecting rods 9 is 3, other flexible connecting rods 9 can be selected, and the flexible connecting rods 9 can be connected by flexible parts of various structures and can also be made of flexible materials such as rubber springs. The suspension technology research of the lap joint structure can be realized after the flexible connecting rods 9 are connected, the two groups of mechanisms are mutually independent after the flexible connecting rods are disconnected, and the single-point suspension technology or single-point guide technology research can be realized by any one group of mechanisms.

The power supply 7 is used for supplying power to the electromagnet 3, the gap sensor 2 and the driving and control unit 8, and the driving and control unit 8 is internally provided with a current sensor for measuring the current of the electromagnet. The driving and controlling unit 8 is used for executing an internal control algorithm, and calculating a control output quantity in real time according to the set levitation height, the electromagnet current, the levitation gap fed back by the gap sensor 2 and the feedback information of the acceleration sensor 15, so as to control the voltage or the current of the electromagnet 3.

Every group test mechanism can further include handle 4, handle 4 set up in on the rotating bracket 6, handle 4 is used for rotating bracket 6 and drive guide rail 12, apply load and/or survey electromagnetic attraction.

The test device can further comprise a lifting hook 14, the lifting hook 14 is fixed on the flexible connecting rod 9, the weight 5 can be hung on the lifting hook 14, and the test device can change the suspended mass in a mode of increasing or reducing the weight to simulate the fluctuation of the load of the train.

The flexible linkage 9, flexible pad 13 and hook 14 may be flexible or rigid.

The electromagnet 3, the gap sensor 2 and the flexible gasket 13 are fixed components and are fixedly arranged on a mounting bracket 10, and the mounting bracket 10 is fixedly arranged on the test bed framework 1. The guide rail 12, the flexible connecting rod 9, the rotating support 6, the handle 4, the lifting hook 14, the weight 5 and the acceleration sensor 15 are moving parts capable of rotating around the rotating shaft 11, wherein the weight 5 is hung on the lifting hook 14, the lifting hook 14 is fixed on the flexible connecting rod 9, the handle 4 and the guide rail 12 are all installed and fixed on the rotating support 6, and the rotating support 6 can rotate between the upper electromagnet 3 and the lower electromagnet 3 around the rotating shaft 11.

The utility model discloses test device's electro-magnet 3 is fixed part, and guide rail 12 is moving part, and is similar with maglev train's theory of operation, but the mounting means is just opposite. The electromagnet 3 and the sensor 2 correspond to the guide rail 12 in a facing manner, the electromagnet 3 and the guide rail 12 are both made of magnetic conductive materials (such as pure iron DT4), and the electromagnet 3 and the guide rail 12 form a closed magnetic loop after being electrified. The mounting bracket 10 and the rotating bracket 6 are made of non-magnetic materials (such as aluminum alloy), a certain gap is reserved between the upper guide rail 12 and the lower guide rail 12, and N, S polarity of the electromagnet is reasonably configured to reduce electromagnetic leakage and prevent electromagnetic crosstalk between electromagnetic circuits.

By adopting the multifunctional suspension guide principle test device, a multifunctional suspension guide principle test can be carried out, and the test method comprises the following steps:

when the test device realizes the research of the single-point suspension technology: the single-point suspension system comprises 1 electromagnet 3, 1 gap sensor 2, 1 acceleration sensor 15, a power supply 7 and a driving and control unit 8. The test device has 8 single-point suspension systems, and because the test device is of an electromagnetic attraction type, 4 single-point suspension systems are placed in a forward direction and an inverted direction. After the flexible connecting rod 9 is disassembled, a single-point suspension system at the upper part is selected optionally, and the single-point suspension technical research can be developed: the gap sensor 2 measures the suspension gap between the electromagnet 3 and the guide rail 12 in real time, the acceleration sensor 15 is used for measuring the acceleration of the guide rail movement, the acceleration signal and the gap signal are fed back to the driving and control unit 8 together, and the driving and control unit 8 calculates the voltage (or current) of the output quantity control electromagnet 3 according to an internal control algorithm, so that the suction force of the electromagnet 3 is changed, and the suspension gap of the guide rail 12 is stabilized at a set height position.

When the test device realizes the research of the single-point guiding technology: the single-point guiding system comprises 2 electromagnets 3, 2 gap sensors 2, 2 acceleration sensors 15, a power supply 7 and a driving and control unit 8. The test device has 4 single-point guide systems, the guide system with self weight is arranged at the position shown in the figure, and the guide system without static error is arranged when the left side surface or the back surface of the platform is arranged at the bottom surface for installation. After the flexible connecting rod 9 is disassembled, a single-point guiding system is selected optionally, and the research on the single-point guiding technology can be developed: the gap sensor 2 measures the guide gaps between the upper and lower electromagnets 3 and the upper and lower guide rails 12, the acceleration sensor 15 is used for measuring the acceleration of the guide rail movement, the acceleration signal and the gap signal are fed back to the driving and control unit 8, and the driving and control unit 8 calculates the voltage (or current) of the output quantity control electromagnet 3 according to an internal control algorithm, so that the suction force of the electromagnet 3 is changed, the guide gaps of the guide rails 12 are stabilized at a set position, or the guide gaps at two sides are kept equal.

When the test device simulates the suspension working condition of a single bogie to realize the four-point suspension technical research: the two groups of suspension and guide mechanisms are connected through the flexible connecting rod 9, so that the two groups of mechanisms are linked. The rotating shafts 11 of the two sets of mechanisms are disassembled, so that the whole movable guide rail part (comprising the guide rail 12, the rotating bracket 6, the flexible connecting rod 9, the acceleration sensor 15, the lifting hook 14, the handle 4 and the weight 5) is changed from the rotating freedom degree into the moving freedom degree in the vertical direction. The four-point suspension of the whole movable guide rail part can be realized by controlling the 4 single-point suspension systems on the upper part.

When the test device simulates the lap joint redundancy principle on the maglev train to realize the suspension technology research of the lap joint structure: on the basis of single-point suspension, two groups of suspension and guide mechanisms are connected through a flexible connecting rod 9, an upper single-point suspension system is selected for each of the two groups of suspension and guide mechanisms, and two suspension points control the suspension work of the two groups of guide rails 12 and the flexible connecting rod 9 mechanism to simulate the suspension of a lap joint structure. When any one suspension point fails (such as the gap sensor 2 fails, the electromagnet 3 fails, the driving and control unit 8 fails and the like), the rest one suspension point still keeps the two groups of movable guide rail parts stably suspended, and overlapping redundancy control is realized.

When the single-point suspension technical research, the single-point guiding suspension technical research, the four-point suspension technical research or the suspension technical research of the lap joint structure is carried out, a plurality of gap sensors 2 can be installed at any gap sensor 2 used in the current research or a plurality of acceleration sensors 15 can be installed at any acceleration sensor 15 used in the current research, the plurality of sensors can be used for redundancy backup in the control process, and the normal test cannot be influenced by the fault as long as the gap sensors 2 on each point are not completely damaged and the acceleration sensors 15 on each point are not completely damaged, so that the reliability of the system is improved.

The test device can also simulate various sudden interferences and even severer interferences on the magnetic-levitation train, thereby realizing the anti-interference research. Taking a single-point suspension research as an example, at any stage of system operation, the suspension mass can be changed by increasing or decreasing the weight 5 to simulate the fluctuation of train load, and the fluctuation caused by disturbance such as train bump or side wind can be simulated by applying external disturbance force to the handle 4.

The terms and expressions which have been employed are used as terms of description and not of limitation. The use of such terms and expressions is not intended to exclude any equivalents of the features shown and described (or portions thereof), and it is recognized that various modifications may be made within the scope of the claims. Other modifications, variations, and alternatives are also possible. Accordingly, the claims should be looked to in order to cover all such equivalents.

Also, it should be noted that, although the present invention has been described with reference to the specific embodiments, it should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention, and that various equivalent changes or substitutions can be made without departing from the spirit of the present invention, and therefore, it is intended that all changes and modifications to the above embodiments within the scope of the present invention be included in the claims of the present invention.

Claims (10)

1. The utility model provides a multi-functional suspension direction principle test device which characterized in that includes: a test bed framework (1), and a gap sensor (2), an electromagnet (3), a guide rail (12) and an acceleration sensor (15) which are arranged on the test bed framework (1),

the test bed framework (1) is used for bearing the weight of the whole test device,

the electromagnet (3) is configured to generate electromagnetic attraction with the guide rail (12) after being electrified again and form a closed magnetic loop,

the gap sensor (2) is configured to measure a levitation gap between the electromagnet (3) and the guide rail (12),

the acceleration sensor (15) is configured to measure a motion acceleration of the guide rail (12).

2. The multifunctional levitation guidance principle testing device according to claim 1, wherein the testing device comprises a rotating bracket (6), the rotating bracket (6) is arranged to rotate around a rotating shaft (11), the guide rail (12) is fixed on the rotating bracket (6), and the rotating bracket (6) rotates to drive the guide rail (12) to move away from or close to the electromagnet (3).

3. The multifunctional suspension guide principle test device of claim 2,

the test device comprises two groups of suspension guide test mechanisms,

every group suspension direction test mechanism includes: a set of be arranged from top to bottom electromagnet (3), a set of be arranged from top to bottom guide rail (12), a set of gap sensor (2), a set of acceleration sensor (15), a set of installing support (10), a set of rotating support (6), a set of gap sensor support (16), a set of ring flange (17), ring flange (17) are fixed test bench skeleton (1) is gone up and the trompil is used for rotationally installing axis of rotation (11), electromagnet (3) are fixed on installing support (10), gap sensor (2) are installed on gap sensor support (16), gap sensor support (16) are fixed on installing support (10), acceleration sensor (15) are installed on guide rail (12).

4. The multifunctional suspension guide principle test device according to claim 3,

each group of electromagnets (3) which are arranged up and down comprises 4 electromagnets (3) which are respectively arranged up and down 2,

each group of guide rails (12) which are arranged up and down comprises 4 guide rails (12), 2 guide rails are respectively arranged up and down,

each group of gap sensors (2) comprises 4 gap sensors (2), 1 gap sensor is arranged at the upper part and the lower part of the position close to the rotating shaft (11), 1 gap sensor is arranged at the upper part and the lower part of the position far away from the rotating shaft (11),

each set of acceleration sensors (15) comprises 4 acceleration sensors (15), 1 acceleration sensor is arranged at the upper part and the lower part of the position close to the rotating shaft (11), and 1 acceleration sensor is arranged at the upper part and the lower part of the position far away from the rotating shaft (11).

5. The multifunctional suspension guide principle test device according to claim 4,

the testing device comprises a plurality of flexible connecting rods (9), wherein the flexible connecting rods (9) are used for connecting or disconnecting two groups of suspension guide testing mechanisms.

6. The multifunctional suspension guide principle test device according to claim 5, characterized in that the test device comprises a hook (14), the hook (14) is fixed on the flexible connecting rod (9), the weight (5) can be hung on the hook (14),

the test device can change the suspended mass in a mode of increasing or reducing weights and simulate the fluctuation of the load of the train.

7. The multifunctional suspension guide principle test device according to claim 3,

and the mounting bracket (10) is provided with a flexible gasket (13) for preventing the rotating bracket (6) from rigidly colliding with the electromagnet (3) when the guide rail (12) rotates.

8. The multifunctional levitation guidance principle testing device according to claim 3, wherein the rotating shaft (11) is detachably mounted in a hole of the flange plate (17).

9. The multifunctional suspension guide principle test device according to claim 2, characterized in that the test device comprises a handle (4), the handle (4) is arranged on the rotating bracket (6), and the handle (4) is used for rotating the rotating bracket (6) and driving the guide rail (12), applying load and/or measuring electromagnetic attraction force.

10. A multifunctional levitation guidance principle test device according to any one of claims 1-6, wherein the test device comprises a power source (7) and a drive and control unit (8),

the power supply (7) is used for supplying power to the electromagnet (3), the gap sensor (2) and the driving and controlling unit (8),

the driving and control unit (8) is internally provided with a current sensor for measuring the current of the electromagnet, and the driving and control unit (8) is used for controlling the voltage or the current of the electromagnet (3).

Images