Dynamic calibration device for force-measuring wheel set based on high-speed wheel-rail relation test bench

Abstract

The utility model discloses a dynamometric wheelset dynamic calibration device based on a high-speed wheeltrack relation test bench, which applies vertical, transverse and longitudinal loads to an experimental wheelset respectively through a vertical actuator, a transverse actuator and a longitudinal actuator. When an experiment wheel set is in contact with a track wheel, parameters such as the speed, the wheel set transverse movement amount, the head shaking angle, the vertical load, the transverse load and the longitudinal load during actuation of the experiment wheel set can be combined into a plurality of calibration working condition sequences, and dynamic calibration of the force measurement wheel set under the conditions of high speed, heavy load and different running speeds and loads of urban rails can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of wheelset calibration, in particular to a dynamic calibration device for a dynamometric wheelset based on a high-speed wheel-rail relationship test bench. Background Art

[0002] The wheelset is the part of the locomotive vehicle that is in contact with the rails. It consists of two left and right wheels firmly pressed onto the same axle. The function of the wheelset is to ensure the operation and steering of the locomotive vehicle on the rails, bear all static and dynamic loads from the locomotive vehicle, transfer them to the rails, and transfer the loads caused by line irregularities to the various components of the locomotive vehicle. In addition, the driving and braking of the locomotive vehicle are also achieved through the wheelset. There are strict requirements on the assembly pressure and press-fitting process of the axles and wheels. The inner distance of the wheelset must be guaranteed to be within the range of 1353±3 mm. In order to ensure the smooth operation of the locomotive vehicle and reduce the wheel-rail interaction force and running resistance, the processing ovality and eccentricity of the axle journal and wheel tread, as well as the journal taper, must not exceed the specified limits.

[0003] The patent with publication number CN113484045B discloses a longitudinal force measurement system and a force measuring wheelset calibration test bench. The patent specifically discloses that "the embodiment of the present application provides a longitudinal force measurement system and a force measuring wheelset calibration test bench. The longitudinal force measurement system includes a longitudinal force measuring device, and the longitudinal force measuring device includes: a longitudinal mounting platform; a longitudinal slide, the longitudinal slide is slidably connected to the longitudinal mounting platform and the longitudinal slide can slide along the longitudinal direction on the longitudinal mounting platform; a vertical support assembly, installed on the longitudinal slide, for supporting the wheels of the force measuring wheelset; a three-force sensor, fixed to the vertical support assembly; wherein the three-force sensor is used to obtain support reaction forces in three directions when the wheels of the force measuring wheelset are subjected to a preset vertical load and the longitudinal slide is subjected to a preset longitudinal load. The force measuring wheelset calibration test bench includes the above-mentioned longitudinal force measurement system" The technical solution realizes the technical effect of "the embodiment of the present application solves the technical problem that the traditional force measuring wheelset calibration test bench can only perform static force measurement calibration in the vertical direction or static force measurement calibration in the lateral direction".

[0004] However, the device, as described in its records, "specifically includes a longitudinal mounting platform which is the installation base of the longitudinal force measuring device. The two wheels of the force measuring wheelset are placed on the vertical support components of the two longitudinal force measuring devices. A preset vertical load is applied to the wheels of the force measuring wheelset, and at the same time, the longitudinal slide is also loaded with a preset longitudinal load, that is, the load is loaded in the vertical and longitudinal directions at the same time. In this way, the longitudinal force measuring system can realize the force measurement calibration of the loads loaded in the vertical and longitudinal directions at the same time. (Equivalent to the two longitudinal actuators of this scheme); the gantry is the installation base of the vertical loading actuator. The vertical pressing beam needs to be pressed on one side of the force measuring wheelset. The lateral force measurement system further includes: a lateral loading actuator 360, which is laterally fixed on the lateral support seat 310, the lateral connecting member 320 is fixed to one end of the lateral loading actuator 360, and the lateral loading actuator 360 and the load sensor 330 are arranged opposite each other (equivalent to the lateral loading unit of this solution). It is known that in actual use, this device can only perform individual wheelset testing and calibration operations, and cannot effectively improve the noise generated by high-speed wheelsets and the potential danger of wheelsets being separated, posing certain safety risks. Utility Model Content

[0005] The purpose of the utility model is to provide a dynamic calibration device for a dynamometric wheelset based on a high-speed wheel-rail relationship test bench, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a dynamic calibration device for a dynamometric wheelset based on a high-speed wheel-rail relationship test bench, comprising a test unit, the test unit including an actuator for testing a test wheelset and a rail wheel from multiple directions; a correction unit, the correction unit including a derivation plate and a contact plate for contact correction between the test wheelset and the rail wheel from two end faces; and a silencer unit, the silencer unit including a silencer module for silencing noise during actuation testing of the test wheelset and the rail wheel.

[0007] As a further solution of the present invention: the test unit includes a guide frame and a wheel test bench, an experimental wheelset and a rail wheel are provided on one side of the wheel test bench, a vertical actuator and a lateral actuator are provided on one side of the guide frame, one end of the vertical actuator and the lateral actuator are fixedly connected to the gantry crane, and the other end is fixedly connected to the guide frame, a longitudinal actuator and an adapter are provided inside the guide frame, the vertical actuator, the lateral actuator and the longitudinal actuator apply external force to the experimental wheelset in the vertical, lateral and longitudinal directions respectively, the adapter is used for numerical adjustment of the external force applied to the vertical actuator, the lateral actuator and the longitudinal actuator, and the rail wheel is driven by the rail wheel drive gearbox and the rail wheel drive motor.

[0008] As a further solution of the present invention: the correction unit includes a driving gear, a gear, a deduction plate, a movable rod and a contact plate, the driving gear is rotatably connected to the wheel test bench, the gear is meshed with the driving gear, the contact plate is fixedly connected to the gear, the movable rod is rotatably connected to the sound receiving plate, and one end of the movable rod that penetrates the sound receiving plate is rotatably connected to the deduction plate through a bearing, and the deduction plate or the contact plate acts on the single side wall of the experimental wheelset and the track wheel respectively.

[0009] As a further solution of the present invention: the silencer unit includes a silencer module, and the silencer module is internally provided with a mechanical wave generating module, an anti-phase wave generating module and a release module. The mechanical wave generating module captures the noise generated by the operation of the experimental wheelset and the rail wheel and generates a noise wave. The anti-phase wave generating module enables the silencer module to generate a silencer wave with a waveform opposite to that of the noise wave. The release module releases the silencer wave and performs noise reduction processing when the experimental wheelset and the rail wheel are in operation.

[0010] As a further solution of the present invention, a contact roller is connected to the interior of the contact plate for rotation, and the contact roller is used to reduce resistance when the test wheelset or the track wheel rotates.

[0011] As a further solution of the present invention: a pressure sensor is fixedly installed on the periphery of the contact roller, and the pressure sensor is used for in-position detection of the test wheelset or rail wheels or pressure detection during contact.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. Vertical, lateral and longitudinal loads are applied to the test wheelset through vertical actuators, lateral actuators and longitudinal actuators respectively. When the test wheelset is in contact with the track wheel, the speed, wheelset lateral displacement, yaw angle, vertical load, lateral load and longitudinal load parameters of the test wheelset during actuation can be combined into multiple calibration condition sequences, which can meet the dynamic calibration of the dynamometer wheelset under different operating speeds and load conditions of high-speed, heavy-load and urban rail.

[0014] 2. Since the adapter is equipped with an actuation computer inside to apply external force to the vertical actuator, lateral actuator and longitudinal actuator, it can ensure that the positions of the test wheelset and the track wheel will not deviate during actuation.

[0015] 3. The driving gear is driven to move, and the gear movement drives the contact plate to move to contact one side of the test wheelset or track wheel. Moreover, the movable rod is rotated to drive the deduction plate to move along the axial direction of the movable rod to contact the other side of the test wheelset or track wheel. Thus, the position of the test wheelset or track wheel can be corrected when the high-speed rotating test wheelset or track wheel is in contact, thereby avoiding the problem of the test wheelset or track wheel falling off or misalignment.

[0016] 4. The present application performs noise reduction operations when the high-speed rotating experimental wheelset contacts the rail wheel and generates noise, thereby allowing the personnel during the experiment to obtain a relatively good and comfortable experimental environment and reduce physical harm to the experimenters.

[0017] 5. Since the contact rollers are arranged in multiple linear arrays, the contact rollers can be used to detect the deviation of the test wheelset or rail wheel during the rotation of the test wheelset or rail wheel, ensuring the normal progress of the test wheelset and rail wheel actuation test. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is one of the schematic diagrams of the actuation test of the experimental wheelset and the track wheel in the embodiment of the present utility model;

[0019] Figure 2 This is a second schematic diagram of the actuation test of the experimental wheelset and the track wheel in the embodiment of the present utility model;

[0020] Figure 3 This is a schematic structural diagram of the experimental wheelset and the track wheel in the embodiment of the present utility model;

[0021] Figure 4 This is a structural diagram of the silencer module in an embodiment of the present utility model;

[0022] Figure 5 This is a schematic structural diagram of the contact plate and the contact roller in an embodiment of the present utility model;

[0023] Figure 6 This is a schematic structural diagram of the contact roller and the pressure sensor in an embodiment of the present utility model;

[0024] In the figure: 1. Vertical actuator; 2. Transverse actuator; 3. Longitudinal actuator; 4. Guide frame; 5. Experimental wheelset; 6. Adapter; 7. Track wheel; 8. Track wheel drive gearbox; 9. Track wheel drive motor; 10. Wheel test bench; 11. Driving gear; 12. Gear; 13. Sound receiving board; 14. Silencer module; 15. Derivation plate; 16. Movable rod; 17. Contact plate; 18. Contact roller; 19. Pressure sensor. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings.

[0026] Reference Figure 1As shown, a dynamic calibration device for a dynamometric wheelset based on a high-speed wheel-rail relationship test bench is shown in the embodiment diagram of the present invention, including a test unit, wherein the test unit includes actuators for testing an experimental wheelset 5 and a track wheel 7 from multiple directions. Specifically, the test unit includes a guide frame 4 and a wheel test bench 10, and an experimental wheelset 5 and a track wheel 7 are provided on one side of the wheel test bench 10. A vertical actuator 1 and a lateral actuator 2 are provided on one side of the guide frame 4. One end of the vertical actuator 1 and the lateral actuator 2 are fixedly connected to the gantry crane and the other end is fixedly connected to the guide frame 4. The track wheel 7 is driven by a track wheel drive gearbox 8 and a track wheel drive motor. 9 drive, the guide frame 4 is internally provided with a longitudinal actuator 3 and an adapter 6, the vertical actuator 1, the lateral actuator 2 and the longitudinal actuator 3 apply external forces to the experimental wheelset 5 in the vertical, lateral and longitudinal directions respectively, so that vertical, lateral and longitudinal loads are applied to the experimental wheelset 5 respectively by the vertical actuator 1, the lateral actuator 2 and the longitudinal actuator 3. When the experimental wheelset 5 is in contact with the track wheel 7, the speed, wheelset lateral displacement, yaw angle, vertical load, lateral load and longitudinal load of the experimental wheelset 5 during actuation can be combined into a plurality of calibration condition sequences, which can meet the dynamic calibration of the dynamometer wheelset under different operating speeds and load conditions of high-speed, heavy-load and urban rail;

[0027] Other embodiments of the present invention: The adapter 6 is used for adjusting the external force applied to the vertical actuator 1, the lateral actuator 2, and the longitudinal actuator 3. Specifically, an actuation computer for adjusting the external force applied to the vertical actuator 1, the lateral actuator 2, and the longitudinal actuator 3 is provided inside the adapter 6, which can ensure that the positions of the test wheel set 5 and the track wheel 7 do not deviate during actuation;

[0028] Other embodiments of the present invention: The correction unit includes a guide plate 15 and a contact plate 17 for contact correction of the test wheel set 5 and the track wheel 7 from two end faces. The guide plate 15 or the contact plate 17 respectively acts on the single side wall of the test wheel set 5 and the track wheel 7. For details, please refer to Figure 2 and Figure 3The correction unit includes a driving gear 11, a gear 12, a deduction plate 15, a movable rod 16 and a contact plate 17. The driving gear 11 is rotatably connected to the wheel test bench 10, the gear 12 is meshed with the driving gear 11, the contact plate 17 is fixedly connected to the gear 12, and the movable rod 16 is rotatably connected to the sound receiving plate 13. One end of the movable rod 16 that penetrates the sound receiving plate 13 is rotatably connected to the deduction plate 15 through a bearing. Therefore, the driving gear 11 rotates to drive the gear 12 to move, and the gear 12 moves to drive the contact plate 17 to move to contact one side of the experimental wheel pair 5 or the track wheel 7. Moreover, the movable rod 16 rotates to drive the deduction plate 15 to move along the axial direction of the movable rod 16 and to contact the other side of the experimental wheel pair 5 or the track wheel 7. Therefore, when the high-speed rotating experimental wheel pair 5 or the track wheel 7 are in contact, the position correction operation of the experimental wheel pair 5 or the track wheel 7 is performed to avoid the problem of the experimental wheel pair 5 or the track wheel 7 falling off and misaligned.

[0029] Other embodiments of this utility model: please refer to Figure 4 The silencer unit includes a silencer module 14 for silencing the noise during the actuation test of the experimental wheel pair 5 and the track wheel 7. The silencer unit includes the silencer module 14. The silencer module 14 is internally provided with a mechanical wave generating module, an anti-phase wave generating module and a release module. The mechanical wave generating module captures the noise generated by the actuation of the experimental wheel pair 5 and the track wheel 7 and generates a noise wave. The anti-phase wave generating module generates a silencer wave with a waveform opposite to that of the noise wave for the silencer module 14. The release module releases the silencer wave and performs noise reduction processing when the experimental wheel pair 5 and the track wheel 7 are actuated. Therefore, noise reduction operations can be performed when the high-speed rotating experimental wheel pair 5 contacts the track wheel 7 to generate noise, so that personnel during the experiment can obtain a relatively good and comfortable experimental environment and reduce physical injuries to the experimenters.

[0030] Other embodiments of this utility model: please refer to Figure 5 and Figure 6 The internal rotation of the contact plate 17 is connected to a contact roller 18, and the contact roller 18 is used to reduce the resistance when the experimental wheelset 5 or the track wheel 7 rotates. A pressure sensor 19 is fixedly installed on the periphery of the contact roller 18, and the pressure sensor 19 is used for in-position detection of the experimental wheelset 5 or the track wheel 7 or pressure detection during contact. Since the contact rollers 18 are arranged in a plurality of linear arrays, the contact rollers 18 can be used to detect the deviation of the experimental wheelset 5 or the track wheel 7 during the rotation of the experimental wheelset 5 or the track wheel 7, thereby ensuring the normal progress of the actuation test of the experimental wheelset 5 and the track wheel 7.

[0031] The working principle of the present invention is as follows: vertical, transverse and longitudinal loads are applied to the test wheelset 5 respectively through the vertical actuator 1, the transverse actuator 2 and the longitudinal actuator 3. When the test wheelset 5 contacts the track wheel 7, the speed, wheelset lateral displacement, yaw angle, vertical load, transverse load and longitudinal load and other parameters of the test wheelset 5 during actuation can be combined into multiple calibration working condition sequences, which can meet the dynamic calibration of the dynamometer wheelset under different operating speeds and load conditions of high-speed, heavy-load and urban rail.

[0032] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A dynamic calibration device for dynamometric wheelsets based on a high-speed wheel-rail relationship test bench, characterized in that: The test unit comprises an actuator for testing a test wheel set (5) and a track wheel (7) from multiple directions; A correction unit, comprising a guide plate (15) and a contact plate (17) for performing contact correction between the test wheelset (5) and the track wheel (7) from two end faces; and A silencer unit, comprising a silencer module (14) for silencing the test wheelset (5) and the track wheel (7) during actuation testing.

2. The dynamic calibration device for dynamometric wheelsets based on a high-speed wheel-rail relationship test bench according to claim 1 is characterized in that: The test unit comprises a guide frame (4) and a wheel test bench (10), wherein an experimental wheel set (5) and a track wheel (7) are provided on one side of the wheel test bench (10), and a vertical actuator (1) and a lateral actuator (2) are provided on one side of the guide frame (4), wherein one end of each of the vertical actuator (1) and the lateral actuator (2) is fixedly connected to the gantry crane, and the other end is fixedly connected to the guide frame (4), and a longitudinal actuator (3) and an adapter (6) are provided inside the guide frame (4), wherein the vertical actuator (1), the lateral actuator (2) and the longitudinal actuator (3) respectively apply external forces to the experimental wheel set (5) in the vertical, lateral and longitudinal directions of the experimental wheel set (5), and the adapter (6) is used for numerical adjustment of external force applied by the vertical actuator (1), the lateral actuator (2) and the longitudinal actuator (3), and the track wheel (7) is driven by a track wheel drive gearbox (8) and a track wheel drive motor (9).

3. The dynamic calibration device for dynamometric wheelsets based on a high-speed wheel-rail relationship test bench according to claim 2 is characterized in that: The correction unit comprises a driving gear (11), a gear (12), a guide plate (15), a movable rod (16) and a contact plate (17), wherein the driving gear (11) is rotationally connected to the wheel test bench (10), the gear (12) is meshedly connected to the driving gear (11), the contact plate (17) is fixedly connected to the gear (12), the movable rod (16) is rotationally connected to the sound receiving plate (13), one end of the movable rod (16) that penetrates the sound receiving plate (13) is rotationally connected to the guide plate (15) through a bearing, and the guide plate (15) or the contact plate (17) acts on the single side wall of the experimental wheelset (5) and the track wheel (7) respectively.

4. The dynamic calibration device for dynamometric wheelsets based on a high-speed wheel-rail relationship test bench according to claim 3 is characterized in that: The silencer unit comprises a silencer module (14), wherein a mechanical wave generating module, an anti-phase wave generating module and a release module are provided inside the silencer module (14), wherein the mechanical wave generating module captures the noise generated by the operation of the experimental wheel set (5) and the track wheel (7) and generates a noise wave, wherein the anti-phase wave generating module is used by the silencer module (14) to generate a silencer wave having a waveform opposite to that of the noise wave, and wherein the release module is used to release the silencer wave and perform noise reduction processing when the experimental wheel set (5) and the track wheel (7) are operated.

5. The dynamic calibration device for dynamometric wheelsets based on a high-speed wheel-rail relationship test bench according to claim 4 is characterized in that: The contact plate (17) is internally rotatably connected to a contact roller (18), and the contact roller (18) is used to reduce resistance when the test wheel set (5) or the track wheel (7) rotates.

6. The dynamic calibration device for dynamometric wheelsets based on a high-speed wheel-rail relationship test bench according to claim 5 is characterized in that: A pressure sensor (19) is fixedly mounted on the outer periphery of the contact roller (18), and the pressure sensor (19) is used for in-position detection of the test wheel set (5) or the track wheel (7) or pressure detection during contact.

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