CN113484046B - Calibration test bed for force measuring wheel set - Google Patents
Calibration test bed for force measuring wheel set Download PDFInfo
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- CN113484046B CN113484046B CN202110769075.6A CN202110769075A CN113484046B CN 113484046 B CN113484046 B CN 113484046B CN 202110769075 A CN202110769075 A CN 202110769075A CN 113484046 B CN113484046 B CN 113484046B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/08—Railway vehicles
Abstract
The embodiment of the application provides a force measuring wheel set calibration test bed which comprises a test bed base platform and a vertical force measuring system, wherein the vertical force measuring system is arranged on the test bed base platform; the vertical force measuring system comprises a vertical force measuring device, and the vertical force measuring device comprises: vertically supporting the rollers; the vertical supporting rollers are vertically arranged at the supporting roller mounting frame and can vertically rotate; the three-component force sensor at the bottom of the roller is fixed below the supporting roller mounting frame; the longitudinal sliding table is fixed below the three-component force sensor at the bottom of the roller; the three-component force sensor at the bottom of the roller is used for bearing a preset vertical load on the wheel of the force measuring wheel set and rotating at a preset speed to drive the vertical supporting roller to rotate, so that the support reaction forces in three directions are obtained. The embodiment of the application provides and has solved traditional dynamometry wheel pair and has markd the test bench and can only carry out the static dynamometry of vertical direction and mark, perhaps the problem of the static dynamometry of horizontal direction demarcation.
Description
Technical Field
The application relates to the technical field of calibration of a force measuring wheel set, in particular to a force measuring wheel set calibration test bed.
Background
The force measuring wheel set is a core sensing device in the dynamics test research of the rail vehicle, and the performance of the force measuring wheel set directly influences the evaluation result of a tested object. The calibration test bed of the force-measuring wheel set is special equipment for calibrating the output characteristics of the force-measuring wheel set and testing various performance indexes of the force-measuring wheel set, and the calibration of the force-measuring wheel set is an important link in the research and application of the force-measuring wheel set.
With the rapid development of railways in China, the manufacturing technology of rolling stock is greatly improved, and higher requirements are put forward on the performance of the force measuring wheel pair. The conventional force measuring wheel set calibration means, namely the equipment adaptability, and the accuracy and integrity of the calibration result, cannot meet the requirements of related scientific research activities. The development of more scientific and advanced force measuring wheel pair calibration equipment is increasingly urgent.
The traditional force measuring wheel set calibration test bed can only carry out static force measurement calibration in the vertical direction or static force measurement calibration in the transverse direction.
Therefore, the conventional force measuring wheel set calibration test bed can only carry out static force measurement calibration in the vertical direction or static force measurement calibration in the transverse direction, which is a technical problem urgently needed to be solved by technical personnel in the field.
The above information disclosed in the background section is only for enhancement of understanding of the background of the present application and therefore it may contain information that does not form the prior art that is known to those of ordinary skill in the art.
Disclosure of Invention
The embodiment of the application provides a force measuring wheel set calibration test bed to solve the technical problem that the conventional force measuring wheel set calibration test bed can only carry out static force measurement calibration in the vertical direction or static force measurement calibration in the transverse direction.
The embodiment of the application provides a force measuring wheel set calibration test bed which comprises a test bed base platform and a vertical force measuring system, wherein the vertical force measuring system is arranged on the test bed base platform;
the vertical force measuring system comprises a vertical force measuring device, and the vertical force measuring device comprises:
the vertical supporting roller is used for supporting the wheels of the force measuring wheel pair;
the vertical supporting idler wheel is vertically arranged at the supporting idler wheel mounting rack, and the vertical supporting idler wheel can vertically rotate;
the roller bottom three-component force sensor is fixed below the supporting roller mounting frame;
the longitudinal sliding table is fixed below the three-component force sensor at the bottom of the roller;
the wheel bottom three-component force sensor is used for bearing a preset vertical load on a wheel of the force measuring wheel pair and rotating at a preset speed to drive the vertical supporting roller to rotate, and therefore supporting reaction forces in three directions are obtained.
Due to the adoption of the technical scheme, the embodiment of the application has the following technical effects:
two wheels of the force measuring wheel pair are arranged on the vertical supporting rollers of the two vertical force measuring devices. The vertical supporting roller plays a supporting role for the wheels of the force measuring wheel set. The wheel of dynamometry wheel pair applys predetermined vertical load, and the wheel rotates with predetermined speed simultaneously, and at this moment, the wheel of dynamometry wheel pair can drive vertical supporting roller rotatory, and the three fens force transducer in gyro wheel bottom can acquire the counter-force of bearing of three direction to carry out the output. Therefore, the dynamic force measurement calibration of the force measurement wheel pair in the vertical direction is realized.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic diagram of a calibration test bed for a load wheel set according to an embodiment of the present disclosure;
FIG. 2 is a front view of the calibration test stand of the force measuring wheel set shown in FIG. 1;
FIG. 3 is a side view of the calibration test stand for the load wheel set shown in FIG. 1;
FIG. 4 is a partial schematic view of a calibration test stand for the load wheel set shown in FIG. 1;
FIG. 5 is a partial schematic view of the calibration stand of the force measuring wheel set shown in FIG. 4;
FIG. 6 is an enlarged view of a portion of FIG. 5;
FIG. 7 is a partial schematic view of a vertical force-measuring system and a longitudinal force-measuring system of the calibration test stand of the force-measuring wheel set shown in FIG. 1;
FIG. 8 is a side view of FIG. 7;
FIG. 9 is a schematic view of the lateral force measurement system of the calibration test stand for a load cell wheel set shown in FIG. 1 and the relative position of the load cell wheel set;
FIG. 10 is a front view of FIG. 9;
fig. 11 is a side view of fig. 9.
Reference numerals:
100 test bed base platform, 110 lifting lugs, 120 supporting legs,
211 vertically supporting a roller, 212 supporting a roller mounting frame, 213 bottom three-component force sensor, 214 transverse sliding table, 214-1 transverse sliding table lower sliding block, 216 transverse moving lead screw, 216-1 transverse moving lead screw threaded rod,
221 vertical support rails, 222 rail mounts,
223 the bottom three-split force sensor of the rail,
231 longitudinal sliding tables, 231-1 transverse guide grooves,
241 portal frame, 241-1 portal frame column, 241-2 portal frame beam, 242 vertical loading actuator, 243 vertical press-mounting beam,
251 transverse limiting device, 252 vertical guide rail, 252-1 strip rail, 252-2 strip blocks, 253 vertical sliding block, 254 vertical guide transition piece,
260 longitudinal mounting platform, 261 longitudinal guide slot,
270 longitudinal loading of the screw, 271 longitudinal loading of the threaded rod of the screw,
310 are transversely supported on the supporting base,
320 transverse connector, 321 transverse connector body, 322 transverse connector support rib, 323 transverse connector reinforcing rib,
330 load sensors, 340 load roller mounts, 350 lateral load rollers, 360 lateral load actors,
371 lateral load rail, 372 lateral slide.
Detailed Description
In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Example one
As shown in fig. 1, fig. 2 and fig. 3, the calibration test stand for a force measuring wheel set in the embodiment of the present application includes:
a test stand base platform 100;
the vertical force measuring system is detachably arranged on the test bed base platform 100;
the transverse force measuring system is detachably arranged on the test bed base platform 100;
and the longitudinal force measuring system is detachably arranged on the base platform 100 of the test bed.
The calibration test bed for the force measuring wheel set can achieve static force measurement calibration and dynamic force measurement calibration in the vertical direction, static force measurement calibration and dynamic force measurement calibration in the transverse direction, vertical and longitudinal combined static force measurement calibration and dynamic force measurement calibration, and horizontal and vertical combined static side force calibration and dynamic force measurement calibration.
The following describes each force measuring system of the calibration test bed of the force measuring wheel set in the embodiment of the present application.
With respect to the test stand base platform:
as shown in fig. 1 and 2, a test stand base platform 100 is secured to the laboratory parameter testing test stand foundation and serves as a foundation for the entire load cell pair calibration test stand. In order to ensure the strength and the service performance of the test bed base platform, the material is HT300, the test bed base platform is annealed to eliminate casting stress after being cast, flaw detection inspection is carried out according to relevant standards after preliminary machining, secondary aging treatment is carried out on the platform after the qualification is confirmed to eliminate the residual internal stress of a casting, and finally finish machining is carried out, the occupied area is about 6.27m multiplied by 3.9m, the upper part of the platform is provided with a cross T-shaped groove, and the installation and the fixation of other parts of the test system are convenient. Lifting lugs 110 are arranged at four corners of the test platform, so that the test platform can be moved integrally. Under the platform 8 support legs 120 are provided for fixing with the lower parameter table base,
with respect to vertical force measurement systems.
The vertical force measuring system comprises two vertical force measuring devices, and one vertical force measuring device corresponds to one wheel of the force measuring wheel pair. The vertical force measuring device is used for applying vertical load to the wheels of the force measuring wheel pair corresponding to the vertical force measuring device and carrying out vertical force measurement.
As shown in fig. 1, 2, 3, 4, 5, 7 and 8, the vertical force measuring device comprises:
a support roller mounting bracket 212, at which the vertical support roller 211 is vertically installed and the vertical support roller 211 can vertically rotate;
a roller bottom three-component force sensor 213 fixed below the support roller mounting bracket 212;
the longitudinal sliding table 231 is fixed below the roller bottom three-component force sensor 213;
the roller bottom three-component force sensor 213 is configured to obtain support reaction forces in three directions when a wheel of the force measuring wheel pair bears a preset vertical load and rotates at a preset speed to drive the vertical support roller 211 to rotate.
Two wheels of the force measuring wheel pair are arranged on the vertical supporting rollers of the two vertical force measuring devices. The vertical supporting roller plays a supporting role for the wheels of the force measuring wheel set. The wheel of dynamometry wheel pair applys predetermined vertical load, and the wheel rotates with predetermined speed simultaneously, and at this moment, the wheel of dynamometry wheel pair can drive vertical supporting roller rotatory, and the three fens force transducer in gyro wheel bottom can acquire the counter-force of bearing of three direction to carry out the output. Therefore, the dynamic force measurement calibration of the force measurement wheel pair in the vertical direction is realized.
Specifically, the predetermined vertical load may have a plurality of values, and the predetermined speed at which the wheel rotates may have a plurality of values.
Specifically, the support roller mounting frame has a horizontally fixed support roller mounting frame center axis, the center through hole of the vertical support roller passes through the support roller mounting frame center axis, and the vertical rotation is that the vertical support roller rotates by taking the support roller mounting frame center axis as the center.
In practice, as shown in fig. 7 and 8, the vertical force measuring device further comprises:
a transverse sliding table 214 which is connected to the longitudinal sliding table 231 in a sliding manner, and the transverse sliding table 214 can slide on the longitudinal sliding table 231 along the transverse direction;
the roller bottom three-component force sensor 213 is fixed on the transverse sliding table 214, and the transverse direction is consistent with the thickness direction of the vertical support roller.
The wheels of the force measuring wheel pair have a certain thickness. The thickness of the vertical supporting roller is smaller than that of the wheel of the force measuring wheel pair. Therefore, under the condition that the preset vertical load value and the preset speed value of wheel rotation are kept unchanged, the contact point of the vertical supporting roller and the wheel of the force measuring wheel pair can be adjusted in the transverse direction, and therefore more complete dynamic force measurement calibration can be obtained. Through the interactive connection of horizontal slip table on vertical slip table, realized the slip of horizontal slip table in the transverse direction to realized under the unchangeable condition in the position of transverse direction at vertical slip table, vertical supporting roller can slide in the transverse direction. Under the condition that the position of the force measuring wheel pair is kept unchanged, the contact point of the vertical supporting roller and the wheel of the force measuring wheel pair can be adjusted in the transverse direction.
Specifically, the longitudinal sliding table is a transverse sliding table, the bottom of the roller is provided with three force sensors, a support roller mounting frame and a mounting base for the vertical support roller.
Specifically, the range that the transverse sliding table can slide on the longitudinal sliding table along the transverse direction is larger than 0mm and smaller than or equal to 140 mm. The contact point of the wheels corresponding to the vertical support roller and the force measuring wheel pair can be adjusted in the transverse direction.
The range that the transverse sliding table can slide on the longitudinal sliding table along the transverse direction is large, and the transverse sliding table can adapt to wheels of various force measuring wheel pairs.
In practice, as shown in fig. 7 and 8, the longitudinal sliding table 231 is provided with a transverse guide groove 231-1, and the guide direction of the transverse guide groove 231-1 is consistent with the transverse direction;
the bottom of the transverse sliding table is provided with a transverse sliding table lower sliding block 214-1, the transverse sliding table lower sliding block 214-1 is arranged in the transverse guide groove 231-1, and the transverse sliding table lower sliding block 214-1 can slide along the guide direction of the transverse guide groove 231-1;
the width of the notch of the transverse guide groove 231-1 is smaller than the width of the groove bottom of the transverse guide groove 231-1, and the cross section of the transverse sliding table lower slide block 214-1 is consistent with the cross section of the transverse guide groove 231-1 in shape.
The mode that horizontal guide way and horizontal slip table gliding block cooperate has realized through simple structure that horizontal slip table slides along the transverse direction on vertical slip table. The width of the notch of the transverse guide groove is smaller than the width of the groove bottom, the cross section of the lower sliding block of the transverse sliding table is consistent with the shape of the cross section of the transverse guide groove, and therefore when the lower sliding block of the transverse sliding table is clamped in the transverse guide groove, the lower sliding block of the transverse sliding table cannot be separated from the notch of the transverse guide groove.
In practice, as shown in fig. 7 and 8, the transverse sliding table is provided with a transverse sliding table threaded hole along the transverse direction;
the vertical force measuring device further comprises:
the transverse moving screw rod 216 is fixed at the bottom of the transverse guide groove 231-1, and a threaded rod 216-1 of the transverse moving screw rod is in threaded fit with a threaded hole of the transverse sliding table;
the transverse moving screw 216 is configured to drive the transverse sliding table 214 to move in the transverse direction relative to the longitudinal sliding table 231, so that the contact position between the vertical supporting roller 211 and the wheel of the force measuring wheel pair can move in the transverse direction.
The transverse sliding table moves along the transverse direction relative to the longitudinal sliding table through the cooperation of the transverse moving screw rod and the threaded hole of the transverse sliding table, the moving precision is high, and the moving distance is controllable.
Specifically, the thread pitch of the threaded rod 216-1 of the transverse moving lead screw is greater than or equal to 0.8mm and smaller than or equal to 1.5mm. The pitch of the threaded rod of the transverse displacement screw determines the accuracy with which the contact point of the vertical support roller and the wheel of the force measuring wheel pair is displaced in the transverse direction.
Specifically, the thread pitch of the threaded rod 216-1 of the lateral movement screw is 1mm.
In practice, as shown in fig. 7 and 8, the vertical force measuring device further comprises:
a vertical support rail 221 and a rail mount 222, the vertical support rail 221 being fixed above the rail mount 222;
a rail bottom three-component force sensor 223 fixed below the rail mounting bracket 222 and above the longitudinal sliding table 231;
the track bottom three-component sensor 223 is configured to obtain support reaction forces in three directions when a wheel of the force measuring wheel set bears a preset vertical load and the vertical support track statically supports the wheel of the force measuring wheel set.
Two wheels of the force measuring wheel pair are arranged on the vertical supporting tracks of the two vertical force measuring devices. The vertical supporting track plays a supporting role for the wheels of the force measuring wheel set. A preset vertical load is applied to the wheels of the force measuring wheel pair, and the three-component force sensor at the bottom of the track can acquire and output support reaction forces in three directions. Therefore, the static force measurement calibration of the force measurement wheel pair in the vertical direction is realized.
In an implementation, as shown in fig. 1, 2, 3, 4 and 5, the vertical force measuring device further includes:
the gantry comprises two gantry columns 241-1 and a gantry beam 241-2, wherein one gantry corresponds to one vertical supporting roller, the gantry beam 241-2 is fixedly arranged between the two gantry columns 241-1, and the gantry beam 241-2 can move up and down along the gantry columns 241-1 and is fixed after moving;
the vertical loading actuator 242 is hung below the portal frame beam 241-2, and the vertical loading actuator 242 can move along the portal frame beam 241-2 and is fixed after moving;
the vertical press-fitting cross beam 243 is arranged at the lower end of the vertical loading actuator 242, and the vertical press-fitting cross beam 243 is used for pressing on one axle box of the force-measuring wheel pair;
the vertical loading actuator 242 is configured to apply a vertical load to one axle box of the force-measuring wheel pair by the vertical press-fitting beam 242 through the vertical press-fitting beam 242, so that wheels of the force-measuring wheel pair bear a preset vertical load.
The portal frame is an installation foundation of the vertical loading actuator. The vertical press-fitting cross beam needs to be pressed on one axle box of the force-measuring wheel pair. The portal frame crossbeam can be followed the portal frame stand reciprocates and removes the after-fixing, and like this, vertical pressure equipment crossbeam also can be adjusted at the height of vertical direction, can realize like this that vertical pressure equipment crossbeam presses on one axial of dynamometry wheel pair. The vertical loading actuator can move along the portal frame beam and can be fixed after moving, and therefore the position of the vertical press-fitting beam can be adjusted along the length direction, namely the longitudinal direction, of the portal frame beam. When the vertical press-mounting cross beam is in contact with one axle box of the force measuring wheel pair, the vertical loading actuator is used for applying a vertical load to the vertical press-mounting cross beam, so that the vertical press-mounting cross beam applies a vertical load to one axle box of the force measuring wheel pair.
In particular, the gantry is a gantry of Q345 material.
In an implementation, as shown in fig. 1, 2, 3, 4 and 5, the vertical force measuring device further includes:
two transverse limiting devices 251 which are arranged at the outer side of the portal frame 241;
the two vertical guide devices comprise vertical guide rails 252 and vertical sliding blocks 253, the vertical guide rails 252 are fixed on the vertical side faces, facing the force measuring wheel pairs, of the transverse limiting devices, the guide direction is the vertical direction, the vertical sliding blocks 253 are matched with the vertical guide rails 252, and the vertical sliding blocks can slide along the vertical guide rails 252;
two vertical guide transition pieces 254, wherein one vertical guide transition piece 254 is fixed at each of the two ends of the vertical press-fitting crossbeam 243, and the two vertical guide transition pieces 254 are respectively fixed with the two vertical sliding blocks 253;
the vertical guide rail, the vertical sliding block and the vertical guide transition piece are matched to guide the vertical movement of the vertical press-fitting cross beam.
One vertical force measuring device is provided with two transverse limiting devices, and the two vertical force measuring devices are provided with four transverse limiting devices. When the force measuring wheel pair is supported on the vertical supporting roller or the vertical supporting track, the two vertical press-mounting cross beams are respectively pressed on the two axle boxes of the force measuring wheel pair. Two ends of each vertical press-fitting cross beam are fixed to the two vertical sliding blocks through vertical guide transition pieces. Therefore, in the transverse direction, the transverse limiting of the two sides of the force measuring wheel pair is realized, so that the force measuring wheel pair cannot move in the transverse direction. The vertical guide rail, the vertical sliding block and the vertical guide transition piece are matched, so that the vertical press-fitting cross beam can guide when applying vertical load in the vertical direction, and the deviation of the direction can not occur.
In implementation, the vertical support rollers, the support roller mounting frames, the gravity centers of the three-component force sensor at the bottom of the rollers and the transverse sliding table are positioned on the same straight line; therefore, the vertical load borne by the wheels of the force measuring wheel pair is applied to the three-component force sensor at the bottom of the roller and the transverse sliding table through the vertical supporting roller, and the vertical load cannot deviate or deviates less. The vertical supporting roller, the supporting roller mounting frame and the transverse sliding table are less worn.
The gravity centers of the track mounting frame and the three-component force sensor at the bottom of the track are positioned on the same straight line; therefore, the vertical load borne by the wheels of the force measuring wheel pair is applied to the three-component force sensor at the bottom of the track through the vertical supporting track, and the vertical load cannot deviate or deviates less. The rail is vertically supported, and the rail mounting frame is less worn.
The upper rail surface of the vertical support rail is parallel to the upper wheel surface of the vertical support roller wheel, the vertical support rail and the vertical support roller wheel are adjacently arranged in the longitudinal direction, and the longitudinal direction is consistent with the length direction of the vertical support rail;
each vertical force measuring device further comprises two fixing devices, the fixing devices are used for fixing the vertical press-mounting cross beam and the axle box of the force measuring wheel pair when the vertical press-mounting cross beam and the axle box of the force measuring wheel pair are in contact, and the vertical loading actuator is further used for lifting the force measuring wheel pair and the press-mounting cross beam which are fixed together upwards.
Thus, the fixing device fixes the vertical press-mounting beam and the force measuring wheel pair together on the axle box of the vertical press-mounting beam and the force measuring wheel pair; when the force measuring wheel pair needs to be switched between the vertical support rail and the vertical support roller, the vertical loading actuator can lift the fixed force measuring wheel pair and the press-fitting cross beam upwards to leave the vertical support rail or the vertical support roller, the longitudinal direction position is switched by adjusting the position of the vertical loading actuator at the cross beam of the portal frame, the fixed force measuring wheel pair and the fixed press-fitting cross beam fall to the vertical support roller or the vertical support rail, and the static force measuring calibration and the dynamic force measuring calibration are switched.
In operation, as shown in fig. 6, the vertical guide rail 252 includes:
two spaced apart bar tracks 252-1;
a bar-shaped block 252-2 having a guide groove, the bar-shaped block 252-2 being centrally disposed between the two bar-shaped rails 252-1;
the vertical slider 253 includes:
the two clamping grooves 253-1 are matched with the strip-shaped rails in a clamping way;
and the clamping block is matched with the guide groove in a clamping manner.
In implementation, the vertical force measuring system comprises two vertical force measuring devices, and vertical support rollers of the two vertical force measuring devices are respectively used for supporting two wheels of a force measuring wheel pair.
Thus, each group of vertical guide rails and vertical sliding blocks are provided with three structures capable of achieving guiding, so that vertical loads of the vertical press-mounting cross beam can be applied to the axle boxes of the force measuring wheel pairs without deviation or with less deviation.
With respect to lateral force measurement systems.
As shown in fig. 9, 10 and 11, the lateral force measuring system includes:
a transverse support seat 310;
a transverse connecting member 320 slidably connected to the transverse support seat 310, wherein the transverse connecting member 320 can slide in a transverse direction on the transverse support seat 310;
a load cell 330 fixed to an outer side of the cross-link 320;
a loading roller mounting frame 340 fixed on the outer side of the load sensor 330;
a lateral loading roller 350 installed laterally at the loading roller mounting bracket 340, the lateral loading roller 350 being capable of rotating laterally;
wherein:
the transverse connecting piece is used for sliding in the transverse direction to enable the transverse loading roller to abut against the inner side of the wheel of the testing wheel pair;
the load sensor is used for acquiring support reaction force in the transverse direction when wheels of the force measuring wheel pair rotate above the vertical supporting roller at a preset speed and the transverse loading roller applies a preset transverse load to the inner sides of the wheels of the force measuring wheel pair;
the load sensor is also used for acquiring the support reaction force in the transverse direction when the wheels of the force measuring wheel pair are statically supported by the vertical support rail and the transverse loading roller applies a preset transverse load to the inner sides of the wheels of the force measuring wheel pair.
Two wheels of the force measuring wheel pair are arranged on the vertical supporting rollers of the two vertical force measuring devices. The vertical supporting roller plays a supporting role for the wheels of the force measuring wheel set.
And applying a preset vertical load to the wheels of the force measuring wheel pair, and simultaneously rotating the wheels at a preset speed. At the moment, the vertical force measuring system can be used for calibrating the dynamic force measurement of the force measuring wheel pair in the vertical direction, the transverse loading roller is driven by the transverse connecting piece to move in the transverse direction to abut against the inner side of the wheel of the testing wheel pair, the transverse loading roller applies a preset transverse load to the inner side of the wheel of the force measuring wheel pair, and the load sensor acquires and outputs the support reaction force in the transverse direction. Therefore, dynamic force measurement calibration of the force measuring wheel pair in the transverse direction and the vertical direction is realized.
When the wheel of the force measuring wheel pair is not applied with a preset vertical load and rotates at a preset speed, the transverse loading roller applies a preset transverse load on the inner side of the wheel of the force measuring wheel pair, and the load sensor acquires and outputs a support reaction force in the transverse direction. Therefore, dynamic force measurement calibration of the force measuring wheel pair in the transverse direction is realized.
Specifically, the arrangement mode of the transverse loading roller enables the transverse loading roller to rotate in the transverse direction and to be matched with the inner side of the wheel of the rotating force measuring wheel pair.
Specifically, the loading roller mounting frame is provided with a loading roller mounting frame central shaft which is vertically fixed, a central through hole of the transverse loading roller penetrates through the loading roller mounting frame central shaft, and the transverse rotation is that the transverse loading roller rotates by taking the loading roller mounting frame central shaft as a center.
In implementation, the load sensor is further configured to obtain a support reaction force in a transverse direction when a wheel of the force measuring wheel set is stationary, that is, the wheel does not rotate, and the transverse loading roller applies a preset transverse load to the inner side of the wheel of the force measuring wheel set.
Two wheels of the force measuring wheel pair are arranged on the vertical supporting tracks of the two vertical force measuring devices.
The vertical supporting track plays a supporting role for the wheels of the force measuring wheel set. At the moment, the vertical force measuring system can be used for calibrating the static force measurement of the force measuring wheel pair in the vertical direction, the transverse loading roller is driven by the transverse connecting piece to move in the transverse direction to abut against the inner side of the wheel of the testing wheel pair, the transverse loading roller applies a preset transverse load to the inner side of the wheel of the force measuring wheel pair, and the load sensor acquires and outputs the support reaction force in the transverse direction. Therefore, the static force measurement calibration of the force measurement wheel pair in the transverse direction and the vertical direction is realized.
The preset vertical load is not applied to the wheels of the force measuring wheel pair, the preset transverse load is applied to the inner sides of the wheels of the force measuring wheel pair by the transverse loading roller, and the load sensor acquires and outputs the support reaction force in the transverse direction. Therefore, the static force measurement calibration of the force measurement wheel pair in the transverse direction is realized.
Thus, the transverse force measuring system can realize the dynamic force measuring calibration and the static force measuring calibration in the transverse direction; the transverse force measuring system is matched with the vertical force measuring system, and static force measuring calibration and dynamic force measuring calibration in the transverse direction and the vertical direction can be realized.
As shown in fig. 9, 10 and 11, the lateral force measuring system further comprises:
a transverse loading actuator 360 transversely fixed on the transverse support seat 310, the transverse connector 320 being fixed at one end of the transverse loading actuator 360, and the transverse loading actuator 360 and the load sensor 330 being disposed opposite to each other;
the transverse loading roller 350 is higher than the upper end of the transverse loading actuator 360;
the transverse loading actuator 360 can extend and contract and is used for applying a transverse load to the transverse connecting piece, so that the transverse loading roller 350 applies a preset transverse load to the inner side of one wheel of the force measuring wheel pair.
The transverse loading actuator, the transverse connecting piece, the load sensor, the loading roller mounting frame and the transverse loading roller are connected in a mode, so that the transverse loading roller can move in the transverse direction on one hand to adapt to the condition that the distance between two wheels of various force measuring wheel pairs, namely the track gauge, is various, and on the other hand, transverse load application is also realized.
The introduction of the cross-connecting member is intended to achieve that the cross-loading roller is higher than the upper end of the cross-loading actuator, thus avoiding the possibility that the cross-loading actuator will interfere with other structures of the load-measuring wheel pair, such as the axle housing.
In practice, as shown in fig. 9, 10 and 11, the lateral force measuring system further comprises a lateral guiding device comprising:
a transverse loading guide 371 fixed above the transverse support seat 310 and below the transverse connector 320, wherein the guiding direction of the transverse loading guide 371 is a transverse direction;
the transverse sliding block 372 is fixed at the outer bottom of the transverse connecting piece 320, and is in clamping fit with the transverse loading guide rail 371;
the transverse loading guide rail is matched with the transverse sliding block to guide the extension and the contraction of the transverse connecting piece in the transverse direction.
The transverse loading guide rail is matched with the transverse sliding block, so that the fixed transverse connecting piece, the loading roller mounting frame and the transverse loading roller move in the transverse direction, when a preset transverse load is applied through the transverse loading roller, the guide is carried out, and the deviation of the direction cannot occur.
In practice, as shown in fig. 9, 10 and 11, the transverse connector 320 includes:
an L-shaped transverse connector body 321, wherein the outer side of the vertical arm of the transverse connector body 321 is fixed to the transverse loading actuator 360, the inner side of the vertical arm of the transverse connector body 321 is fixed to the load sensor 330, and the outer side of the transverse arm of the transverse connector body 321 is fixed to the transverse slider 372;
the two ends of the transverse connecting piece supporting rib 322 are fixed at the inner side of the transverse arm of the transverse connecting piece main body 321 and the outer bottom of the loading roller mounting rack 340; wherein the cross-connector support ribs 322 support the loading roller mount 340;
two transverse connector reinforcing ribs 323 which are arranged in parallel, wherein two ends of each transverse connector reinforcing rib 323 are respectively fixed on the inner sides of the vertical arm and the transverse arm of the transverse connector main body 321; wherein the cross-connector support ribs 322 and the loading roller mounting bracket 340 are located between two cross-connector ribs 323.
The L-shaped transverse connecting piece main body is simple in structure, and meanwhile, installation space can be provided for the transverse loading actuator, the load sensor, the transverse sliding block and the transverse connecting piece supporting rib. The L-shaped transverse connecting piece main body, the loading roller mounting frame and the transverse connecting piece support rib approximately form a frame shape, so that the structure is stable. The reinforcing ribs of the transverse connecting piece strengthen the frame shape, so that the structure of the whole transverse connecting piece is more stable.
In implementation, the transverse connecting pieces, the load sensors, the loading roller mounting frames and the transverse loading rollers and the transverse guiding devices are respectively two and are symmetrically arranged on the transverse supporting seat.
Therefore, the transverse force measuring system is of a symmetrical structure, and the two transverse loading rollers can extend and contract back to back and abut against the inner sides of the two wheels of the force measuring wheel pair to simultaneously carry out force measuring calibration.
With respect to longitudinal force measurement systems.
The longitudinal force measuring system comprises two longitudinal force measuring devices, and one longitudinal force measuring device corresponds to one wheel of the force measuring wheel pair. It should be noted that, the longitudinal force measuring device and the vertical force measuring device are combined, and part of the components are multiplexed.
As shown in fig. 7 and 8, the longitudinal force measuring device includes:
a vertical force measuring device;
a longitudinal mounting platform 260, wherein the longitudinal sliding table 231 is slidably connected above the longitudinal mounting platform 260 and the longitudinal sliding table 231 can slide in the longitudinal direction above the longitudinal mounting platform 260;
the roller bottom three-component force sensor 213 is further configured to obtain support forces in three directions when a wheel of the force measuring wheel pair bears a preset vertical load and rotates at a preset speed to drive the vertical support roller to rotate, and the longitudinal sliding table 231 bears a preset longitudinal load; the longitudinal direction is consistent with the length direction of the vertical support rail.
The longitudinal mounting platform is a mounting base of the vertical force measuring device. The vertical force measuring device is reused as a part of the longitudinal force measuring device. Two wheels of the force measuring wheel pair are arranged on the vertical supporting rollers of the two vertical force measuring devices. The vertical supporting roller plays a supporting role for the wheels of the force measuring wheel set.
Applying a preset vertical load to the wheels of the force measuring wheel pair, and enabling the wheels to rotate at a preset speed; meanwhile, the longitudinal sliding table is also loaded with a preset longitudinal load. In this state, the roller bottom three-split force sensor can acquire and output the support reaction forces in three directions. Therefore, dynamic force measurement calibration of the force measuring wheel pair in the vertical direction and the longitudinal direction is realized. It should be noted that the longitudinal slide can be moved in the longitudinal direction above the longitudinal mounting platform when the force-measuring wheel pair is not positioned above the vertical support roller of the vertical force-measuring device. When the force measuring wheel pair is arranged on a vertical supporting roller of a vertical force measuring device and dynamic force measurement calibration is carried out on the force measuring wheel pair in the vertical direction and the longitudinal direction, the longitudinal sliding table does not slide relative to the longitudinal direction although bearing the longitudinal load under most conditions according to the preset size of the longitudinal load. Only in the case of a large longitudinal load does the longitudinal slides slide relative to one another in the longitudinal direction. The dynamic force measurement calibration needs to use the support reaction force data of the roller bottom three-component force sensor before the longitudinal sliding table slides relatively in the longitudinal direction.
In implementation, as shown in fig. 7 and fig. 8, the rail bottom three-component force sensor 223 is further configured to obtain support reaction forces in three directions when the wheels of the force-measuring wheel set bear a preset vertical load and are statically supported by the vertical support rail 221, and the longitudinal sliding table 214 bears a preset longitudinal load.
Two wheels of the force measuring wheel pair are arranged on the vertical supporting tracks of the two vertical force measuring devices. The vertical supporting track plays a supporting role for the wheels of the force measuring wheel set. Applying a preset vertical load to the wheels of the force measuring wheel pair; meanwhile, the longitudinal sliding table is also loaded with a preset longitudinal load. In this state, the rail bottom three-split force sensor can acquire and output the reaction forces in the three directions. Therefore, the static force measurement calibration of the force measurement wheel pair in the vertical direction and the longitudinal direction is realized. When the force measuring wheel pair is arranged on a vertical supporting track of a vertical force measuring device and static force measurement calibration is carried out on the force measuring wheel pair in the vertical direction and the longitudinal direction, the longitudinal sliding table does not slide relative to the longitudinal direction although bearing the longitudinal load under most conditions according to the preset size of the longitudinal load. Only in the case of a large longitudinal load does the longitudinal slides slide relative to one another in the longitudinal direction. The static force measurement calibration needs to use the support reaction force data of the three-component force sensor at the bottom of the track before the longitudinal sliding table slides relatively in the longitudinal direction.
In practice, as shown in fig. 7 and 8, the longitudinal mounting platform 260 has a longitudinal guide slot 261, the guide direction of which is consistent with the longitudinal direction;
the bottom of the longitudinal sliding table 231 is provided with a longitudinal sliding table lower sliding block which is arranged in the longitudinal guide groove 261 and can slide along the guide direction of the longitudinal guide groove 261;
wherein, the width of the notch of the longitudinal guide groove 261 is smaller than the width of the groove bottom of the longitudinal guide groove 261, and the cross section of the longitudinal sliding table lower sliding block is consistent with the cross section of the longitudinal guide groove 261.
The longitudinal guide groove and the longitudinal sliding table lower sliding block are matched, and the longitudinal sliding table can slide on the longitudinal installation platform along the longitudinal direction through a simple structure. The width of the notch of the longitudinal guide groove is smaller than the width of the groove bottom, and the cross section of the lower sliding block of the longitudinal sliding table is consistent with the shape of the cross section of the longitudinal guide groove, so that the lower sliding block of the longitudinal sliding table cannot be separated from the notch of the longitudinal guide groove when the lower sliding block of the longitudinal sliding table is clamped in the longitudinal guide groove.
In implementation, the longitudinal sliding table is provided with a longitudinal sliding table threaded hole along the longitudinal direction;
as shown in fig. 7 and 8, the longitudinal force measuring device further includes:
the longitudinal loading screw rod 270 is fixed at the bottom of the longitudinal guide groove 261, and a threaded rod 271 of the longitudinal loading screw rod is in threaded fit with the threaded hole of the longitudinal sliding table;
the longitudinal loading screw 270 is used for applying a longitudinal load to the longitudinal sliding table.
And the longitudinal loading screw rod is matched with the threaded hole of the longitudinal sliding table, so that longitudinal load can be applied to the longitudinal sliding table.
The main technical indexes of the calibration test bed for the force measuring wheel set in the embodiment of the application are as follows:
the calibration test bed for the force measuring wheel set can be used for calibrating the force measuring wheel set of a 27t large-axle-load vehicle:
the maximum loading capacity of the vertical loading actuator is set to 300kN;
the maximum loading capacity of the transverse loading actuator is set to 150kN;
the maximum loading capacity of the longitudinal loading screw was set at 50kN.
Specifically, the test bed base platform is made of rigid materials;
the transverse supporting seat is made of rigid materials;
the transverse connecting piece is made of rigid materials;
the loading roller mounting frame is made of rigid materials;
the transverse loading guide rail is made of rigid materials;
the transverse sliding block is made of rigid materials;
the support roller mounting bracket is made of rigid materials;
the longitudinal sliding table is made of rigid materials;
the longitudinal installation platform is made of rigid materials;
the transverse sliding table is made of rigid materials;
the vertical supporting rail is made of rigid materials;
the track mounting is of a rigid material;
the portal frame is made of rigid materials;
the transverse limiting device is made of rigid materials;
the vertical guide device is made of rigid materials.
Specifically, the vertical force measuring system, the transverse force measuring system and the longitudinal force measuring system are detachably arranged on the base platform of the test bed. Because the vertical force measuring system, the transverse force measuring system and the longitudinal force measuring system are detachably mounted and can be conveniently dismounted, the force measuring wheel set can be conveniently assembled and disassembled.
Specifically, the distance between the two vertical supporting rails and the distance between the two vertical supporting rollers determine a force measuring wheel set which can be suitable for multiple track gauges, and force measuring calibration can be performed on the force measuring wheel set with multiple track gauges by adjusting the distance between the two longitudinal mounting platforms. Dynamometric wheels of various gauges, such as metric rail (1000 mm), standard rail (1435 mm) to wide rail (1676 mm).
Specifically, the portal frame crossbeam can be followed the portal frame stand reciprocates and removes the after-fixing, and like this, vertical pressure equipment crossbeam also can be adjusted at the height of vertical direction, and like this, the distance between vertical support rail and the vertical pressure equipment crossbeam, distance between vertical supporting roller and the vertical pressure equipment crossbeam, can be adjusted, make vertical dynamometry system can mark the dynamometry of the dynamometry wheel pair in a definite wheel footpath, distance more than or equal to 800mm less than or equal to 1200mm between vertical support rail and the vertical pressure equipment crossbeam, distance more than or equal to 800mm less than or equal to 1200mm between vertical supporting roller and the vertical pressure equipment crossbeam.
In the description of the present application and the embodiments thereof, it is to be understood that the terms "top", "bottom", "height", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
In this application and its embodiments, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integral to; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application and its embodiments, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.
The above disclosure provides many different embodiments or examples for implementing different structures of the application. The components and arrangements of specific examples are described above to simplify the present disclosure. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (14)
1. A force measuring wheel pair calibration test bed is characterized by comprising a test bed base platform and a vertical force measuring system, wherein the vertical force measuring system is arranged on the test bed base platform;
the vertical force measuring system comprises a vertical force measuring device, and the vertical force measuring device comprises:
the vertical supporting roller is used for supporting the wheels of the force measuring wheel pair;
the vertical supporting idler wheel is vertically arranged at the supporting idler wheel mounting rack, and the vertical supporting idler wheel can vertically rotate;
the roller bottom three-component force sensor is fixed below the supporting roller mounting frame;
the longitudinal sliding table is fixed below the three-component force sensor at the bottom of the roller;
the three-component force sensor at the bottom of the roller is used for acquiring the bearing reaction forces in three directions when the wheels of the force measuring wheel pair bear a preset vertical load and rotate at a preset speed to drive the vertical supporting roller to rotate;
the vertical force measuring device further comprises:
the transverse sliding table is connected to the longitudinal sliding table in a sliding mode and can slide on the longitudinal sliding table in the transverse direction;
the three-component force sensor at the bottom of the roller is fixed on the transverse sliding table, and the transverse direction is consistent with the thickness direction of the vertical support roller;
the thickness of the vertical supporting roller is smaller than that of the wheel of the force measuring wheel pair;
under the condition that the value of the preset vertical load and the value of the preset speed of the wheel rotation are kept unchanged, the contact point of the vertical support roller and the wheel of the force measuring wheel pair can be adjusted in the transverse direction.
2. The calibration test bed for a load-measuring wheel set according to claim 1, wherein the longitudinal sliding table is provided with a transverse guide groove, and the guide direction of the transverse guide groove is consistent with the transverse direction;
the bottom of the transverse sliding table is provided with a transverse sliding table lower sliding block which is arranged in the transverse guide groove and can slide along the guide direction of the transverse guide groove;
the width of the notch of the transverse guide groove is smaller than the width of the groove bottom of the transverse guide groove, and the cross section of the lower sliding block of the transverse sliding table is consistent with the cross section of the transverse guide groove in shape.
3. The load-measuring wheel pair calibration test stand of claim 2,
the transverse sliding table is provided with a transverse sliding table threaded hole along the transverse direction;
the vertical force measuring device further comprises:
the transverse moving screw rod is fixed at the bottom of the transverse guide groove, and a threaded rod of the transverse moving screw rod is in threaded fit with a threaded hole of the transverse sliding table;
the transverse moving screw is used for driving the transverse sliding table to move along the transverse direction relative to the longitudinal sliding table, so that the contact positions of the wheels of the vertical supporting roller and the force measuring wheel pair can move in the transverse direction.
4. The load cell wheel set calibration test stand of claim 3, wherein said vertical load cell device further comprises:
the vertical supporting track is fixed above the track mounting rack;
the rail bottom three-component force sensor is fixed below the rail mounting frame and above the longitudinal sliding table;
the track bottom three-component force sensor is used for acquiring support reaction forces in three directions when wheels of the force measuring wheel pair bear preset vertical loads and the vertical support track statically supports the wheels of the force measuring wheel pair.
5. The calibration test stand for load-measuring wheel sets as claimed in any one of claims 1 to 4, wherein the vertical force-measuring device further comprises:
the gantry comprises two gantry columns and a gantry beam, wherein the gantry beam is fixedly arranged between the two gantry columns and can move up and down along the gantry columns and be fixed after moving;
the vertical loading actuator is hoisted below the portal frame beam and can move along the portal frame beam and be fixed after moving;
the vertical press-mounting crossbeam is arranged at the lower end of the vertical loading actuator and is used for pressing on an axle box of the force measuring wheel pair;
the vertical loading actuator is used for applying a vertical load to one axle box of the force measuring wheel pair through the vertical press-fitting cross beam so that wheels of the force measuring wheel pair bear a preset vertical load.
6. The load cell wheel set calibration test stand of claim 5, wherein said vertical load cell device further comprises:
the two transverse limiting devices are arranged on the outer side of the portal frame;
the two vertical guide devices comprise vertical guide rails and vertical sliding blocks, the vertical guide rails are fixed on the vertical side faces, facing the force measuring wheel pairs, of the transverse limiting devices, the guide direction is the vertical direction, the vertical sliding blocks are matched with the vertical guide rails, and the vertical sliding blocks can slide along the vertical guide rails;
the two vertical guide transition pieces are respectively fixed at two ends of the vertical press-fitting cross beam and are respectively fixed with the two vertical sliding blocks;
the vertical guide rail, the vertical sliding block and the vertical guide transition piece are matched to guide the vertical movement of the vertical press-fitting cross beam.
7. The calibration test bed for a load-measuring wheel set according to claim 5, wherein the vertical support roller, the support roller mounting frame, the three-component force sensor at the bottom of the roller and the center of gravity of the transverse sliding table are positioned on the same straight line;
the gravity centers of the track mounting frame and the three-component force sensor at the bottom of the track are positioned on the same straight line;
the upper rail surface of the vertical support rail is parallel to the upper wheel surface of the vertical support roller wheel, the vertical support rail and the vertical support roller wheel are adjacently arranged in the longitudinal direction, and the longitudinal direction is consistent with the length direction of the vertical support rail;
each vertical force measuring device further comprises two fixing devices, the fixing devices are used for fixing the vertical press-mounting cross beam and the axle box of the force measuring wheel pair when the two are in contact, and the vertical loading actuator is further used for lifting and dropping the force measuring wheel pair and the press-mounting cross beam which are fixed together.
8. The load cell wheel set calibration test stand of claim 6, wherein said vertical guide rail comprises:
two spaced strip rails;
a bar block having a guide slot, the bar block being centrally disposed between the two bar rails;
the vertical slider includes:
the two clamping grooves are matched with the strip-shaped rails in a clamping and matching mode;
and the clamping block is matched with the guide groove in a clamping way.
9. The calibration test stand for a load-measuring wheel set according to claim 8, wherein said vertical load-measuring system comprises two of said vertical load-measuring devices, the vertical support rollers of said two vertical load-measuring devices being adapted to support two wheels of a load-measuring wheel set, respectively.
10. The load cell wheel set calibration test stand of claim 4, wherein said vertical force measuring device further comprises:
the longitudinal mounting platform is connected onto the longitudinal sliding table in a sliding mode, and the longitudinal sliding table can slide on the longitudinal mounting platform along the longitudinal direction; the three-component force sensor at the bottom of the roller is also used for acquiring the supporting reaction forces in three directions when the wheels of the force measuring wheel pair bear a preset vertical load and rotate at a preset speed to drive the vertical supporting roller to rotate, and the longitudinal sliding table bears a preset longitudinal load;
the rail bottom three-component force sensor is also used for acquiring support reaction forces in three directions when wheels of the force measuring wheel pair bear preset vertical loads and are statically supported by the vertical supporting rail, and the longitudinal sliding table bears the preset longitudinal loads; the longitudinal direction is consistent with the length direction of the vertical support rail.
11. The load-measuring wheel pair calibration test stand of claim 10, wherein said longitudinal mounting platform has a longitudinal guide slot, the guiding direction of said longitudinal guide slot being coincident with the longitudinal direction;
the bottom of the longitudinal sliding table is provided with a longitudinal sliding table lower sliding block which is arranged in the longitudinal guide groove and can slide along the guide direction of the longitudinal guide groove;
the width of the notch of the longitudinal guide groove is smaller than that of the groove bottom of the longitudinal guide groove, and the cross section of the lower sliding block of the longitudinal sliding table is consistent with that of the longitudinal guide groove in shape.
12. The load wheel set calibration test stand of claim 11, wherein said longitudinal skid has a longitudinal skid threaded bore in a longitudinal direction;
the longitudinal force measuring device further comprises:
the longitudinal loading screw rod is fixed at the bottom of the longitudinal guide groove, and a threaded rod of the longitudinal loading screw rod is in threaded fit with a threaded hole of the longitudinal sliding table;
the longitudinal loading screw rod is used for applying longitudinal load to the longitudinal sliding table.
13. The load cell wheel set calibration test stand of claim 10, further comprising a lateral load cell system, said lateral load cell system comprising:
a transverse supporting seat;
the transverse connecting piece is connected above the transverse supporting seat in a sliding manner and can slide on the transverse supporting seat along the transverse direction;
the load sensor is fixed on the outer side of the transverse connecting piece;
the loading roller mounting rack is fixed on the outer side of the load sensor;
the transverse loading roller is transversely arranged at the loading roller mounting frame and can transversely rotate; wherein:
the transverse connecting piece is used for sliding in the transverse direction to enable the transverse loading roller to abut against the inner side of the wheel of the testing wheel pair;
the load sensor is used for acquiring support reaction force in the transverse direction when wheels of the force measuring wheel pair rotate above the vertical supporting roller at a preset speed and the transverse loading roller applies a preset transverse load to the inner sides of the wheels of the force measuring wheel pair;
the load sensor is also used for acquiring the support reaction force in the transverse direction when the wheels of the force measuring wheel pair are statically supported by the vertical support rail and the transverse loading roller applies a preset transverse load to the inner sides of the wheels of the force measuring wheel pair.
14. The load wheel set calibration test stand of claim 13, wherein said lateral load cell system further comprises:
the transverse loading actuator is transversely fixed on the transverse supporting seat, the transverse connecting piece is fixed at one end of the transverse loading actuator, and the transverse loading actuator and the load sensor are arranged in a back-to-back manner;
the transverse loading roller is higher than the upper end of the transverse loading actuator; wherein the transverse loading actuator is capable of extending and retracting and is used for applying a transverse load to the transverse connection member, so that the transverse loading roller applies a transverse load to the inner side of one wheel of the force measuring wheel pair;
a lateral guide device, the lateral guide device comprising:
the transverse loading guide rail is fixed above the transverse supporting seat and is positioned below the transverse connecting piece, and the guide direction of the transverse loading guide rail is the transverse direction;
the transverse sliding blocks are respectively fixed at the outer bottom of the transverse connecting piece and are clamped and matched with the transverse loading guide rail; the transverse loading guide rail is matched with the transverse sliding block to guide the extension and the contraction of the transverse connecting piece in the transverse direction.
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101706364A (en) * | 2009-11-19 | 2010-05-12 | 晋西铁路车辆有限责任公司 | Device for carrying out running-in detection on bearings on railway wagon wheel pair |
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| GB2266123A (en) * | 1992-04-16 | 1993-10-20 | Keith Ebbrell | Dynamic monitoring apparatus for rail vehicle bearings |
| US6302424B1 (en) * | 1999-12-09 | 2001-10-16 | Holland Hitch Company | Force-sensing fifth wheel |
| CN100526843C (en) * | 2008-04-23 | 2009-08-12 | 西南交通大学 | Test stand capable of simultaneously measuring railway stock bogie three-way rigidity |
| CN101699247B (en) * | 2009-11-10 | 2011-05-18 | 青岛四方车辆研究所有限公司 | Comprehensive test bed for automobile body |
| CN102384853B (en) * | 2011-10-10 | 2013-10-30 | 吉林大学 | Vertical positioning device of rail vehicle body |
| MX2017012501A (en) * | 2016-10-03 | 2018-09-26 | Bnsf Railway Co | System, method and apparatus for lading measurement in a rail car. |
| CN107255545B (en) * | 2017-06-28 | 2019-11-05 | 中车青岛四方车辆研究所有限公司 | Calibration test platform for force-measuring wheel set |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101706364A (en) * | 2009-11-19 | 2010-05-12 | 晋西铁路车辆有限责任公司 | Device for carrying out running-in detection on bearings on railway wagon wheel pair |
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