Railway vehicle force measuring wheel pair multifunctional calibration system

Abstract

The application discloses a kind of railway vehicle force-measuring wheel pair multifunctional calibration system, including test platform, test platform is equipped with portal frame, both sides of portal frame are equipped with vertical loading actuator, vertical loading actuator is equipped with vertical sensor, the bottom output end of vertical loading actuator is equipped with vertical press-fit crossbeam;Test platform is equipped with lateral support seat, a group of vertical support tracks is symmetrically arranged on lateral support seat and is opposite to the position below vertical press-fit crossbeam, one end of vertical support track is rotatably provided with vertical support roller, force-measuring wheel pair is positioned by vertical press-fit crossbeam, vertical support track and vertical support roller;The side of test platform is equipped with driving motor and is opposite to force-measuring wheel pair direction, the output end of driving motor is connected with force-measuring wheel pair;The present application can complete static force calibration of force-measuring wheel pair vertical direction or lateral direction, and can simulate force calibration of force-measuring wheel pair under operating state.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of railway vehicle force measuring wheel pair multifunctional calibration system, belong to force measuring wheel pair calibration technical field. BACKGROUND

[0002] As the component in vehicle dynamics test, the test result of force measuring wheel pair can be used to evaluate the pros and cons of vehicle dynamics performance, the current method for real-time monitoring of vertical force and lateral force of force measuring wheel pair is the most direct and accurate method with the highest measurement accuracy, therefore, the calibration of force measuring wheel pair is an important part of dynamics test and vehicle dynamics performance research.

[0003] The traditional force measuring wheel pair calibration test bench can only carry out static force calibration in vertical direction or lateral direction, and cannot meet the calibration condition of vehicle in operation state, therefore, it is an urgent problem to be solved to calibrate force measuring wheel pair in operation state. SUMMARY

[0004] The present application aims to overcome the deficiencies in the prior art, and provides a kind of railway vehicle force measuring wheel pair multifunctional calibration system, which can complete static force calibration of force measuring wheel pair in vertical direction or lateral direction, and can also simulate force calibration of force measuring wheel pair in operation state.

[0005] To achieve the above-mentioned purpose, the present application is realized by using the following technical scheme:

[0006] In a first aspect, the present application provides a kind of railway vehicle force measuring wheel pair multifunctional calibration system, including test platform, the test platform is equipped with gantry, the two sides of the gantry are respectively equipped with vertical loading actuator, the vertical loading actuator is equipped with vertical sensor, the bottom output end of the vertical loading actuator is equipped with vertical pressure mounting crossbeam;

[0007] The test platform is equipped with lateral support seat, a group of vertical support tracks are symmetrically arranged on the lateral support seat, and the vertical support tracks are arranged opposite to the position below the vertical pressure mounting crossbeam, one end of the vertical support track is rotatably provided with vertical support roller, and the force measuring wheel pair is positioned by vertical pressure mounting crossbeam, vertical support track and vertical support roller;

[0008] The inner side of the lateral support seat is provided with a lateral loading actuator opposite to the force measuring wheel pair, the lateral loading actuator is provided with a lateral sensor, and the output end of the lateral loading actuator is connected with a lateral loading roller, the lateral loading roller is in contact with the inner side of the force measuring wheel pair under the drive of the lateral loading actuator;

[0009] The test platform is provided with a driving motor opposite to the direction of the force measuring wheel pair on one side, and the output end of the driving motor is connected with the force measuring wheel pair.

[0010] Further, the portal frame comprises a portal frame beam and a portal frame column, the vertical loading actuator is arranged below the portal frame beam, a set of vertical sliding grooves are arranged on the portal frame column opposite the positions of the two ends of the vertical pressing beam, and the two ends of the vertical pressing beam are respectively connected with the vertical sliding grooves on the two sides in a sliding mode.

[0011] Further, the vertical supporting track is fixed below the longitudinal moving platform, the longitudinal moving platform support seat is arranged below the longitudinal moving platform, a set of rotatable longitudinal loading threaded rods are installed on the longitudinal moving platform support seat, the longitudinal loading threaded rods pass through the longitudinal moving platform and are connected with the longitudinal moving platform in a threaded mode.

[0012] Further, the vertical supporting track and the longitudinal moving platform are further provided with a transverse moving track support platform, the vertical supporting track is arranged on the transverse moving track support platform in a sliding mode through a fixing block, a transverse loading threaded rod is connected with the fixing block in a threaded mode, and the transational position of the vertical supporting track is adjusted through the transverse loading threaded rod.

[0013] Further, the vertical supporting track and the longitudinal moving platform are further provided with a transverse moving track support platform, the vertical supporting track is arranged on the transverse moving track support platform in a sliding mode through a fixing block, a transverse loading threaded rod is connected with the fixing block in a threaded mode, and the transational position of the vertical supporting track is adjusted through the transverse loading threaded rod.

[0014] Further, the vertical supporting roller is arranged on the longitudinal moving platform in a rotating mode through a fixing seat and a rotating shaft installed on the fixing seat.

[0015] Further, the fixing seat is arranged on the longitudinal moving platform in a sliding mode, a threaded screw rod is connected with the fixing seat in a threaded mode, and the transational position of the fixing seat is adjusted through the threaded screw rod.

[0016] Further, the transverse moving platform with a sliding groove is provided below the transverse loading device, and the transverse loading device drives the transverse moving platform with a sliding groove to make lifting movement.

[0017] Further, the transverse loading actuator is provided with an output end at each end, and a transverse loading roller is connected with the output end.

[0018] Further, the driving motor is provided with a variable speed shaft box, and the force measuring wheel is connected with the variable speed shaft box through a universal coupling.

[0019] Compared with the prior art, the present application has the following beneficial effects:

[0020] 1. The present application provides a kind of railway vehicle force measuring wheel pair multifunctional calibration system, both vertical and lateral direction static force of force measuring wheel pair can be calibrated, also can simulate the calibration of force measuring wheel pair under specific operating speed when bearing preset lateral and vertical load, the system is suitable for different track gauge, different wheel pair, different rail type force measuring wheel pair vertical direction or lateral direction calibration problem, compared with more simple calibration mode, more widely applicable, maintenance cost is lower, calibration operation is convenient.

[0021] 2. The present application provides a kind of railway vehicle force measuring wheel pair multifunctional calibration system, can be simply completed the positioning of force measuring wheel pair, while the installation mode of vertical loading tooling and lateral loading tooling is simpler, and different track gauge, different wheel pair, different rail type, positioning mode is convenient, equipment is simple and reliable, can better complete the calibration of force measuring wheel pair under preset vertical load and lateral load. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a kind of railway vehicle force measuring wheel pair multifunctional calibration system provided by the embodiment of the present application schematic diagram;

[0023] Figure 2 It is a kind of railway vehicle force measuring wheel pair multifunctional calibration system provided by the embodiment of the present application main view;

[0024] Figure 3 It is a kind of railway vehicle force measuring wheel pair multifunctional calibration system provided by the embodiment of the present application side view;

[0025] Figure 4 It is a kind of railway vehicle force measuring wheel pair multifunctional calibration system provided by the embodiment of the present application local schematic diagram;

[0026] Figure 5 It is Figure 4 a kind of railway vehicle force measuring wheel pair multifunctional calibration system local schematic diagram shown in;

[0027] Figure 6 It is Figure 1 the local schematic diagram of force measuring wheel pair longitudinal force system shown in;

[0028] Figure 7 It is Figure 6 the main view of;

[0029] Figure 8 It is Figure 1 the local schematic diagram of force measuring wheel pair lateral force system shown in;

[0030] Figure 9 It is Figure 8 the main view of.

[0031] In the diagram: 100, test platform; 200, gantry frame; 200-1, gantry frame crossbeam; 200-2, gantry frame column; 201, vertical loading actuator; 202, vertical sensor; 203, vertical pressing crossbeam; 204, drive motor; 205, gearbox; 206, universal coupling; 207, vertical slide rail; 300, transverse support seat; 301, transverse loading device; 302, transverse moving platform with slide rail; 303, longitudinal moving platform; 304, longitudinal loading threaded rod; 305, longitudinal moving platform support seat; 306, vertical support rail; 307, vertical support roller; 308, transverse moving rail support platform; 309, transverse loading actuator; 310, transverse sensor; 311, transverse loading roller. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0033] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] Example 1

[0036] like Figures 1-5 As shown in the figure, this embodiment introduces a multi-functional calibration system for force-measuring wheelsets of railway vehicles, including:

[0037] The test platform 100 is equipped with transverse and longitudinal sliding grooves. A movable gantry support, a transverse support 300, and a longitudinal moving platform 303 support can be installed according to the track gauge of the force-measuring wheelset, and are fixed to the test platform 100 via threaded holes. The gantry 200 includes a gantry beam 200-1 and a gantry column 200-2. A vertical sliding groove 207 is provided on the gantry column 200-2. A vertical loading actuator 201 is connected below the gantry beam 200-1 and is equipped with a vertical sensor 202, which can measure the vertical support reaction force. By adjusting the preset vertical force, a vertical pressing beam 203 is provided below the vertical loading actuator 201. Simultaneously, the side of the vertical pressing beam 203 can move vertically on the vertical sliding groove 207, finally completing the vertical positioning and loading at the position of the force-measuring wheelset axle box.

[0038] Force measuring wheel rotation device: Installation position as follows Figure 1 and Figure 3 As shown, it includes a drive motor 204, which can be set to different speeds according to the operating speed of the force measuring wheelset. The output end is connected to a gearbox 205, which changes the input motor speed to the output force measuring wheelset speed through gear transmission. The output end is connected to a universal coupling 206, which is connected to the axle of the force measuring wheelset, so that the force measuring wheelset can reach the set operating speed. The connection between the universal coupling 206 and the axle can ignore the error of longitudinal or vertical misalignment.

[0039] Longitudinal positioning device: such as Figures 6-7 As shown, the installation location is as follows Figure 1 As shown. A longitudinal moving platform 303 is provided above the support base. The platform is moved by the longitudinal loading threaded rod 304, so that the vertical support rail 306 and the vertical support roller 307 contact the force measuring wheel pair, thereby completing the longitudinal positioning of the force measuring wheel pair.

[0040] Lateral positioning loading device: such as Figures 8-9 As shown, the installation location is as follows Figure 1 As shown. By adjusting the lateral loading device 301, the lateral moving platform 302 with the sliding groove and the lateral moving track support platform 308 are moved. The lateral moving platform is equipped with a lateral loading actuator 309, a lateral sensor 310 in the middle, and a lateral loading roller 311 at the end. The lateral platform is moved to contact the rim of the force measuring wheelset, thereby completing the lateral positioning and loading of the force measuring wheelset.

[0041] The working process and principle of this invention are as follows:

[0042] According to the gauge of the force wheel pair and the shaft diameter requirement, the coarse adjustment transverse support seat 300 and the longitudinal moving platform 303 support seat, and then fine adjustment of the transverse moving track support platform 308 on the support seat, after reaching the set gauge requirement, continue to adjust the transverse loading device 301, so that the transverse loading roller 311 is in contact with the flange part of the force wheel pair, and the transverse positioning is completed. Through the up and down movement of the vertical pressure mounting beam 203 on the vertical sliding groove 207 of the gantry 200, the vertical positioning of the force wheel pair with different shaft diameters can be adapted. After the preset vertical load and transverse load setting is completed, finally, the vertical and transverse force support reaction forces are obtained through the vertical sensor 202 and the transverse sensor 310 respectively, and the calibration of the force wheel pair is completed.

[0043] Different steel rail types can match the vertical support track 306, and the positioning and loading process is the same as above, and the calibration of the force wheel pair can also be completed.

[0044] The embodiment provides a multifunctional calibration system for a force wheel pair of a railway vehicle, which can calibrate the force wheel pair in a static or moving state on a test bench, and the calibration mode is simple, and the force wheel pair can be calibrated in the vertical and transverse directions, and the calibration positioning of the force wheel pair with different gauges, different shaft diameters and different wheel diameters can be adapted, and the applicability is relatively wide.

[0045] The above description is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should be regarded as the protection scope of the present application.

Claims

1. A multi-functional calibration system for force-measuring wheelsets of railway vehicles, comprising a test platform (100), wherein a gantry (200) is provided on the test platform (100), characterized in that: The gantry (200) is provided with vertical loading actuators (201) on both sides, and a vertical sensor (202) is provided on the vertical loading actuator (201). The bottom output end of the vertical loading actuator (201) is provided with a vertical pressing crossbeam (203). The test platform (100) is provided with a transverse support seat (300). A set of vertical support rails (306) are symmetrically arranged on the transverse support seat (300) directly below the vertical pressing beam (203). A vertical support roller (307) is rotatably provided at one end of the vertical support rail (306). The force measuring wheel pair is positioned by the vertical pressing beam (203), the vertical support rail (306) and the vertical support roller (307). A lateral loading actuator (309) is provided on the lateral support base (300) facing the inner side of the force measuring wheelset. A lateral sensor (310) is provided on the lateral loading actuator (309). A lateral loading roller (311) is connected to the output end of the lateral loading actuator (309). The lateral loading roller (311) contacts the inner side of the force measuring wheelset under the drive of the lateral loading actuator (309). A drive motor (204) is provided on one side of the test platform (100) facing the force measuring wheel pair, and the output end of the drive motor (204) is connected to the force measuring wheel pair; The gantry (200) includes a gantry beam (200-1) and a gantry column (200-2). The vertical loading actuator (201) is located below the gantry beam (200-1). The gantry column (200-2) is provided with a set of vertical grooves (207) at both ends of the vertical pressing beam (203). The two ends of the vertical pressing beam (203) are slidably connected to the vertical grooves (207) on both sides. A longitudinal moving platform (303) is fixed below the vertical support rail (306). A longitudinal moving platform (303) support seat is provided below the longitudinal moving platform (303). A set of rotatable longitudinal loading threaded rods (304) are installed on the longitudinal moving platform (303) support seat. The longitudinal loading threaded rods (304) pass through the longitudinal moving platform (303) and are threadedly connected to the longitudinal moving platform (303). A transverse moving track support platform (308) is also provided between the vertical support track (306) and the longitudinal moving platform (303). The vertical support track (306) is slidably set on the transverse moving track support platform (308) through a fixing block. A transverse loading threaded rod is threadedly connected to the fixing block, and the transverse position of the vertical support track (306) is adjusted by the transverse loading threaded rod. The transverse loading actuator (309) is provided with a transverse moving platform (302) with a groove below it, and the transverse loading roller (311) is provided with a slider that is slidably connected to the transverse moving platform (302) with the groove. A horizontal loading device (301) is provided below the horizontal moving platform (302) with a sliding groove, and the horizontal loading device (301) drives the horizontal moving platform (302) with a sliding groove to perform lifting and lowering movements.

2. The multi-functional calibration system for force-measuring wheelsets of railway vehicles according to claim 1, characterized in that, The vertical support roller (307) is rotatably mounted on the longitudinal moving platform (303) via a fixed base and a rotating shaft mounted on the fixed base.

3. The multi-functional calibration system for force-measuring wheelsets of railway vehicles according to claim 2, characterized in that, The fixed seat is slidably mounted on the longitudinal moving platform (303), and a threaded screw is threadedly connected to the fixed seat, through which the lateral position of the fixed seat is adjusted.

4. The multi-functional calibration system for force-measuring wheelsets of railway vehicles according to claim 1, characterized in that, The lateral loading actuator (309) has output ends at both ends, and lateral loading rollers (311) are connected to the output ends.

5. The multi-functional calibration system for force-measuring wheelsets of railway vehicles according to claim 1, characterized in that, The drive motor (204) is equipped with a speed change shaft box (205), and the force measuring wheel is connected to the external universal joint (206) and the speed change shaft box (205).

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