CN214040666U - Test platform of eddy current brake test system and eddy current brake test system - Google Patents
Test platform of eddy current brake test system and eddy current brake test system Download PDFInfo
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- CN214040666U CN214040666U CN202120327532.1U CN202120327532U CN214040666U CN 214040666 U CN214040666 U CN 214040666U CN 202120327532 U CN202120327532 U CN 202120327532U CN 214040666 U CN214040666 U CN 214040666U
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- current braking
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Abstract
The utility model discloses a test platform and eddy current brake test system of eddy current brake test system, wherein, this test platform includes fixed station and swing platform, the swing platform articulates the setting, the swing platform with link to each other through tangential force transducer between the fixed station, the swing platform is equipped with drive assembly and eddy current brake magnet, drive assembly through radial force transducer with eddy current brake magnet links to each other, drive assembly can order about the eddy current brake magnet along the radial displacement of rail wheel, in order to adjust the interval of eddy current brake magnet with the rail wheel; the temperature measuring assembly is used for detecting the temperature of the eddy current braking magnet and/or the rail wheel. The test platform tests the radial force and the tangential force respectively, can improve the test accuracy, is provided with the temperature measurement assembly, and can acquire the temperature rise characteristic of the eddy current brake magnet and/or the rail wheel in the eddy current brake test.
Description
Technical Field
The utility model relates to a braking test technical field, concretely relates to eddy current braking test system's test platform and eddy current braking test system.
Background
The principle of linear eddy current braking is that when a magnet and a conductor move relatively, the conductor cuts magnetic lines of force, according to the electromagnetic induction principle, a closed vortex-shaped induced current is generated inside the conductor under a specific condition to form an eddy current, a magnetic field generated by the eddy current distorts a main magnetic field, the magnetic lines of force deflect to generate a tangential component force, and the tangential component force is braking force.
Because the linear eddy current brake can exert braking force only when the linear eddy current brake generates high-speed relative motion with a track, according to the linear eddy current braking principle of a track train, at present, a track wheel is generally adopted to simulate a linear track, and the eddy current brake is circumferentially arranged along the track wheel, so that the performance test of the linear eddy current brake can be realized, the research and development design of the linear eddy current brake of the train is guided, and when the track wheel simulation test is adopted, a corresponding test platform is required to be configured.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an eddy current braking test system's test platform and eddy current braking test system, wherein, this test platform will radially do all can and tangential force test respectively, can improve the accuracy of test, and this test platform is equipped with temperature measurement component, can acquire the temperature rise characteristic of eddy current braking magnet and/or rail wheel in eddy current braking is experimental.
In order to solve the technical problem, the utility model provides a test platform of eddy current brake test system, including fixed station and swing platform, the swing platform is articulated to be set up, the swing platform with link to each other through tangential force transducer between the fixed station, the swing platform is equipped with drive assembly and eddy current braking magnet, the drive assembly through radial force transducer with the eddy current braking magnet links to each other, the drive assembly can order about the eddy current braking magnet along the radial of rail wheel carries out the displacement, in order to adjust the interval of eddy current braking magnet and rail wheel; the temperature measuring assembly is used for detecting the temperature of the eddy current braking magnet and/or the rail wheel.
When testing, can adjust the radial interval of vortex braking magnet and rail wheel through drive assembly, then, detect the tangential force and the radial force that vortex braking magnet received respectively through tangential force transducer and radial force transducer, because these two power are for testing respectively, the accuracy of test can be higher.
The temperature measurement component can detect the temperature of the eddy current braking magnet and/or the rail wheel so as to control the temperature change of the eddy current braking magnet and/or the rail wheel in real time, and can be used for acquiring the temperature rise characteristic of the eddy current braking magnet and/or the rail wheel in an eddy current braking test.
Optionally, the temperature measuring assembly includes a non-contact temperature measuring sensor mounted on the swing table for detecting a surface temperature of the rail wheel.
Optionally, the temperature measurement assembly comprises a contact temperature measurement sensor mounted to the eddy current braking magnet.
Optionally, the swing table includes an upper seat frame and two opposite side seat frames, the two side seat frames are respectively located at two axial sides of the rail wheel, and both the two side seat frames are hinged, the upper seat frame is connected with the two side seat frames and located above the rail wheel; the upper seat frame is connected with the fixed table through the tangential force sensor, and the driving assembly and the eddy current braking magnet are both arranged on the upper seat frame.
Optionally, the driving assembly includes a mounting seat, a driving mechanism and a connecting seat, the mounting seat is mounted on the upper seat frame, the driving mechanism is mounted on the mounting seat and connected with the connecting seat through the radial force sensor, and the connecting seat is used for mounting the eddy current braking magnet.
Optionally, the eddy current braking magnet is mounted to the connecting seat through a magnetic isolation plate; and/or a sliding guide mechanism is arranged between the connecting seat and the mounting seat.
Optionally, the fixed station comprises a connection frame, the upper mount is located within the connection frame, the upper mount is connected to the connection frame through the tangential force sensor, and the upper mount is further connected to the connection frame through a detachable connection support.
Optionally, the eddy current braking system further comprises a distance measuring assembly for detecting the distance between the eddy current braking magnet and the rail wheel.
Optionally, the eddy current braking magnet is an electromagnet configured with an off switch; the controller is in signal connection with the temperature measuring assembly, the driving assembly and the turn-off switch, and is used for controlling the driving assembly to act so as to drive the eddy current braking magnet to be relatively far away from the track wheel and/or control the turn-off switch to be in a turn-off state when the temperature value measured by the temperature measuring assembly exceeds a set temperature.
The utility model also provides an eddy current braking test system, including test platform and rail wheel, test platform is foretell eddy current braking test system's test platform.
Since the test platform of the eddy current braking test system has the above technical effects, the eddy current braking test system having the test platform also has similar technical effects, and thus is not described herein again.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a test platform of an eddy current braking test system provided in the present invention;
FIG. 2 is a side view of a swing table with a drive assembly mounted thereto;
FIG. 3 is a view of the connection of the oscillating table, drive assembly and eddy current braking magnets;
FIG. 4 is a top view of the junction of the swing table and the fixed table;
fig. 5 is a schematic structural diagram of an embodiment of an eddy current braking test system provided by the present invention.
The reference numerals in fig. 1-5 are illustrated as follows:
1, a fixed table, 11 connecting frames and 12 connecting supporting pieces;
2 swing table, 21 upper seat frame, 22 side seat frame;
3 a tangential force sensor;
4 driving components, 41 mounting seats, 411 sliding rails, 42 driving mechanisms, 421 servo motors, 422 speed reducers, 423 electric cylinders and 43 connecting seats;
5 eddy current brake magnet, 51 magnetic isolation plate;
6 a radial force sensor;
7 non-contact temperature measuring sensor;
8, a distance measuring component;
a rail wheel.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 5, fig. 1 is a schematic structural diagram of an embodiment of a testing platform of an eddy current braking testing system provided in the present invention, fig. 2 is a side view of a swing platform with a driving assembly installed thereon, fig. 3 is a connection structure diagram of the swing platform, the driving assembly and an eddy current braking magnet, fig. 4 is a top view of a connection portion between the swing platform and a fixed platform, and fig. 5 is a schematic structural diagram of an embodiment of an eddy current braking testing system provided in the present invention.
As shown in fig. 1, the utility model provides a test platform of eddy current brake test system, including fixed station 1 and swing platform 2, swing platform 2 articulates the setting, links to each other through tangential force sensor 3 between swing platform 2 and the fixed station 1, swing platform 2 is equipped with drive assembly 4 and eddy current brake magnet 5, drive assembly 4 links to each other with eddy current brake magnet 5 through radial force sensor 6, drive assembly 4 can order about eddy current brake magnet 5 to carry out the displacement along the radial of rail wheel A to adjust the interval of eddy current brake magnet 5 and rail wheel A; and the temperature measuring assembly is used for detecting the temperature of the eddy current braking magnet 5 and/or the rail wheel A.
When the test is carried out, the radial distance between the eddy current braking magnet 5 and the track wheel A can be adjusted through the driving assembly 4, then, the tangential force and the radial force which are applied to the eddy current braking magnet 5 are respectively detected through the tangential force sensor 3 and the radial force sensor 6, and the test accuracy can be higher because the two forces are respectively tested.
The temperature measuring assembly can detect the temperature of the eddy current braking magnet 5 and/or the rail wheel A, so that the temperature change of the eddy current braking magnet 5 and/or the rail wheel A can be mastered in real time, and the temperature measuring assembly can be used for acquiring the temperature rise characteristic of the eddy current braking magnet 5 and/or the rail wheel A in an eddy current braking test.
The eddy current braking magnet 5 may be a permanent magnet or an electromagnet.
In the embodiment of the present invention, preferably, the electromagnet is used to conveniently control the strength of the magnetic force, but the bearing capacity of the electromagnetic coil to the temperature needs to be considered, at this time, the aforementioned temperature measurement component also has the function of ensuring the safe use of the device, and when the temperature of the eddy current braking magnet 5 is too high, the track wheel a can be disconnected for the electromagnet and/or the eddy current braking magnetic pole 5 is controlled by the driving component 4 to prevent the damage of the electromagnet under the continuous high temperature.
In this case, a controller (not shown in the figure) may be further configured, the controller may be in signal connection with the temperature measurement component, the driving component 4, and a turn-off switch (not shown in the figure) of the eddy current braking magnet 5, when the temperature value measured by the temperature measurement component exceeds a set temperature, the controller may drive the eddy current braking magnet 5 to be relatively far away from the track wheel a through the driving component 4, and/or the controller may control the turn-off switch to be in a turn-off state to stop supplying power to the eddy current braking magnetic pole 5, and both of these two manners may avoid or slow down the continuous increase of the temperature of the electromagnetic coil, so as to effectively protect the eddy current braking magnet 5.
Here, the embodiment of the present invention does not limit the specific value of the set temperature, and in practical applications, a person skilled in the art can set the value according to related needs.
The temperature measurement assembly can comprise a non-contact temperature measurement sensor 7 and a contact temperature measurement sensor (not shown in the figure), the non-contact temperature measurement sensor 7 can be an infrared temperature sensor and the like, the contact temperature measurement sensor can be a platinum resistor temperature sensor and the like, and the skilled person can freely select the temperature measurement assembly according to different detection objects and detection requirements.
Referring to fig. 3, the non-contact temperature sensor 7 may be installed on the swing table 2 to detect the surface temperature of the track wheel a, and the contact temperature sensor may be directly installed on the eddy current braking magnet 5 to detect the temperature of the eddy current braking magnet 5.
In a specific embodiment, the swing platform 2 may include an upper seat frame 21 and two opposite side seat frames 22, the two side seat frames 22 may be respectively located at two axial sides of the track wheel a, and referring to fig. 2, the upper seat frame 21 and the two side seat frames 22 may be connected, in this case, the swing platform 2 may be substantially in an inverted U shape, the two side seat frames 22 may be hinged to improve the structural stability of the whole swing platform 2, and the upper seat frame 21 may be located above the track wheel a; the upper mount 21 may be connected to the stationary table 1 by means of the tangential force sensor 3, and both the drive assembly 4 and the eddy current braking magnet 5 may be mounted to the upper mount 21.
Referring to fig. 3, the driving assembly 4 may include a mounting seat 41, a driving mechanism 42 and a connecting seat 43, and the mounting seat 41 may be mounted on the upper seat frame 21 by welding or screwing.
The driving mechanism 42 functions to output a linear displacement, and may employ a member capable of directly outputting a linear displacement, such as a cylinder, or the like. Alternatively, the driving mechanism 42 may also adopt the servo motor 421 as a main power element, but since the servo motor 421 outputs rotational displacement, it needs to be configured with a transmission component to convert the displacement form, and the transmission component may specifically be a rack and pinion mechanism, a lead screw structure, and the like, in the embodiment of the drawing, an electric cylinder 423 matched with the servo motor 421 may be adopted, and a reducer 422 may be further provided between the servo motor 421 and the transmission component to adjust the driving speed of the driving mechanism 42.
The driving mechanism 42 may be mounted on the mounting seat 41 and can be connected to the connecting seat 43 through the radial force sensor 6, the connecting seat 43 may be used to mount the aforementioned eddy current braking magnet 5, the structural form of the eddy current braking magnet 5 is not limited herein, and may be specifically selected according to actual needs, and in order to better fit with the wheel surface of the rail wheel a, as shown in fig. 3, the eddy current braking magnet 5 may be in an arc shape, and may be formed by combining several magnetic poles.
To secure the displacement direction of the eddy current braking magnet 5, a sliding guide mechanism may be provided between the coupling seat 43 and the mounting seat 41. In detail, one of the connecting seat 43 and the mounting seat 41 may be provided with a slide rail 411, and the other may be provided with a slide block (not shown in the figure), which can cooperate with the slide rail 411 to ensure that the eddy current braking magnet 5 is displaced along the radial direction of the track wheel a; the specific structure of the slider and the slide rail 411 is not limited herein.
Further, the eddy current braking magnet 5 may be mounted to the connecting seat 43 through a magnetic isolation plate 51, so that the magnetic field generated by the eddy current braking magnet 5 may be shielded to avoid the magnetic field from affecting the normal operation of the driving mechanism 42 and other components; the specific material of the magnetic shield 51 is not limited herein, and may be a metal plate.
As mentioned above, the eddy current braking magnet 5 may be arc-shaped, in this case, the magnetic isolation plate 51 may have an arc-shaped mounting surface for matching and mounting the eddy current braking magnet 5, and the non-contact temperature sensor 7 may be mounted on the magnetic isolation plate 51.
The utility model provides a test platform can also include range finding subassembly 8 for detect eddy current braking magnet 5 and rail wheel A's interval, so that carry out accurate control to the interval of the two. The distance measuring component 8 can also be mounted on the magnetic shield 51, the number of the distance measuring component can be one or more, and the distance measuring component can be specifically determined by combining actual requirements; the type of the distance measuring unit 8 may be selected from many kinds as long as the function of measuring distance can be achieved, and generally, the distance measuring unit 8 may be a laser displacement sensor, an ultrasonic displacement sensor, or the like.
As shown in fig. 4, the fixed station 1 may include a connection frame 11, the upper seat frame 21 may be located in the connection frame 11, and the upper seat frame 21 may be connected to the connection frame 11 by the tangential force sensor 3 to detect a tangential force, i.e., a braking force, when the swing table 2 swings about its hinge shaft center. The upper seat frame 21 can also be connected with the connecting frame 11 through the detachable connecting support 12, and in a non-testing state, the connecting support 12 can be in a mounting connection state for keeping the relative position of the swing table 2 and the fixed table 1, so that the tangential force sensor 3 can be prevented from being in a continuous stress state, and when testing is needed, the connection state of the connecting support 12 can be firstly released, and then testing is carried out.
The detachable connection mode can be various, such as bolt connection, clamping connection and the like, as long as the technical effect can be realized. Taking fig. 4 as a viewing angle, the connection support 12 and the tangential force sensor 3 may be both located on the same side of the swing table 2, or may be located on both sides of the swing table 2, and may be specifically adjusted according to actual situations.
It should be noted that although the oscillating table 2 in the embodiment of the present invention is named as "oscillating", in practice, the oscillating amount during the experiment is very small due to the connection limitation of the tangential force sensor 3, and the oscillating table does not generate large amplitude oscillation.
The utility model also provides an eddy current brake test system, including test platform and rail wheel A, wherein, this test platform is the test platform of the eddy current brake test system that above-mentioned each embodiment relates promptly.
Since the test platform of the eddy current braking test system has the above technical effects, the eddy current braking test system having the test platform also has similar technical effects, and thus is not described herein again.
In particular practice, with reference to figure 5, a pit may be dug in the ground and the rail wheels a and their mounting structures then placed in the pit so that the fixed station 1 can be mounted directly on the ground, enabling the overall equipment height to be reduced. Alternatively, the track wheels a may be installed on the ground, and in this case, a support having a certain height may be provided on the ground to support the fixed base 1.
The structure of the rail wheel a and the installation structure thereof can refer to the prior art, and are not limited herein. In the embodiment of the drawings, bearing seats can be arranged on both axial sides of the track wheel a for mounting the track wheel a, hinge seats are arranged on the bearing seats, and the side seat frames 22 of the swing table 2 can be respectively hinged to the hinge seats on both axial sides.
Adopt the utility model provides an eddy current braking test system can carry out test, temperature rise characteristic test, eddy current braking process simulation test and power consumption test etc. of tangential force (being the braking force) and radial force (being suction or repulsion promptly).
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The test platform of the eddy current braking test system is characterized by comprising a fixed platform (1) and a swinging platform (2), wherein the swinging platform (2) is hinged, the swinging platform (2) is connected with the fixed platform (1) through a tangential force sensor (3), the swinging platform (2) is provided with a driving assembly (4) and an eddy current braking magnet (5), the driving assembly (4) is connected with the eddy current braking magnet (5) through a radial force sensor (6), and the driving assembly (4) can drive the eddy current braking magnet (5) to move along the radial direction of a track wheel (A) so as to adjust the distance between the eddy current braking magnet (5) and the track wheel (A);
the temperature measuring device also comprises a temperature measuring component used for detecting the temperature of the eddy current braking magnet (5) and/or the rail wheel (A).
2. The eddy current brake test system test platform as claimed in claim 1, wherein the temperature measurement assembly comprises a non-contact temperature measurement sensor (7) mounted on the oscillating table (2) for detecting the surface temperature of the rail wheel (a).
3. The eddy current brake test system test platform as claimed in claim 1, wherein the temperature measurement assembly comprises a contact temperature measurement sensor mounted to the eddy current brake magnet (5).
4. The eddy current brake test system test platform according to any one of claims 1 to 3, wherein the swing table (2) comprises an upper seat frame (21) and two opposite side seat frames (22), the two side seat frames (22) are respectively located at two axial sides of the rail wheel (A), the two side seat frames (22) are respectively hinged, and the upper seat frame (21) is connected with the two side seat frames (22) and located above the rail wheel (A);
the upper seat frame (21) is connected with the fixed table (1) through the tangential force sensor (3), and the driving assembly (4) and the eddy current braking magnet (5) are both arranged on the upper seat frame (21).
5. The eddy current brake test system test platform as claimed in claim 4, wherein the driving assembly (4) comprises a mounting seat (41), a driving mechanism (42) and a connecting seat (43), the mounting seat (41) is mounted on the upper seat frame (21), the driving mechanism (42) is mounted on the mounting seat (41) and connected with the connecting seat (43) through the radial force sensor (6), and the connecting seat (43) is used for mounting the eddy current brake magnet (5).
6. The testing platform of the eddy current braking testing system according to claim 5, wherein the eddy current braking magnet (5) is mounted to the connecting base (43) through a magnetic isolation plate (51); and/or the presence of a gas in the gas,
a sliding guide mechanism is arranged between the connecting seat (43) and the mounting seat (41).
7. Testing platform of an eddy current brake testing system according to claim 4, characterized in that the stationary table (1) comprises a connection frame (11), the upper mounting (21) being located inside the connection frame (11), the upper mounting (21) being connected to the connection frame (11) via the tangential force sensor (3), the upper mounting (21) being further connected to the connection frame (11) via a detachable connection support (12).
8. Testing platform of an eddy current brake testing system according to any of claims 1-3, characterized by further comprising a distance measuring assembly (8) for detecting the distance of the eddy current brake magnet (5) from the rail wheel (A).
9. Testing platform of the eddy current brake testing system according to any of the claims 1-3, characterized in that the eddy current brake magnet (5) is an electromagnet configured with a switch off;
the temperature measuring device is characterized by further comprising a controller, the controller is in signal connection with the temperature measuring assembly, the driving assembly (4) and the turn-off switch, and the controller is used for controlling the driving assembly (4) to act to drive the eddy current braking magnet (5) to be relatively far away from the track wheel (A) and/or controlling the turn-off switch to be in a turn-off state when the temperature value measured by the temperature measuring assembly exceeds a set temperature.
10. Eddy current brake testing system comprising a testing platform and a rail wheel (a), characterized in that the testing platform is a testing platform of an eddy current brake testing system according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120327532.1U CN214040666U (en) | 2021-02-04 | 2021-02-04 | Test platform of eddy current brake test system and eddy current brake test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120327532.1U CN214040666U (en) | 2021-02-04 | 2021-02-04 | Test platform of eddy current brake test system and eddy current brake test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214040666U true CN214040666U (en) | 2021-08-24 |
Family
ID=77347775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120327532.1U Active CN214040666U (en) | 2021-02-04 | 2021-02-04 | Test platform of eddy current brake test system and eddy current brake test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214040666U (en) |
-
2021
- 2021-02-04 CN CN202120327532.1U patent/CN214040666U/en active Active
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