CN201917496U - Testing equipment for contact stress of wheels and tracks of rapid train - Google Patents
Testing equipment for contact stress of wheels and tracks of rapid train Download PDFInfo
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- CN201917496U CN201917496U CN2010206015544U CN201020601554U CN201917496U CN 201917496 U CN201917496 U CN 201917496U CN 2010206015544 U CN2010206015544 U CN 2010206015544U CN 201020601554 U CN201020601554 U CN 201020601554U CN 201917496 U CN201917496 U CN 201917496U
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Abstract
The utility model discloses testing equipment for contact stress of the wheels and tracks of a rapid train. A rack of the testing equipment is provided with a left wheel carrier and a right wheel carrier for installing a wheel pair, and the wheel spindle of the wheel pair is installed on the left wheel carrier and the right wheel carrier through a bearing; and the left end of the wheel spindle is further connected with an output shaft of a speed reducer through a dynamic load clutch, and the input shaft of the speed reducer is connected with a drive motor shaft through a coupling. The right end of the wheel spindle is connected with the output shaft of a static load servo motor through a static load clutch, and the static load servo motor is installed on the rack through a servo motor frame; a strain detection device is installed on the wheel pair, and is connected with a wireless transmission device; and a signal emitted by the wireless transmission device is received and processed by a data processing device. The testing equipment can simulate the stress generated in a high speed running state of train wheel pairs more vividly, and the monitoring result is more precise, complete and accurate, therefore, more reliable experimental data is provided for running safety and comfortableness of trains.
Description
Technical field
The utility model relates to a kind of train wheel track contact condition stress test equipment, relates in particular to a kind of bullet train wheel Rail Contact Stresses testing apparatus.
Background technology
Bullet train is in operational process, and the contact condition of wheel track influences the comfortableness and the security of train operation.Therefore need carry out the wheel track contact test to train.Because wheel mainly is subjected to radial and axial acting force when contacting with track, therefore during the wheel track test mainly be by wheel on erection stress sensor wheel suffered radial and axial stress intensity to the time in operation, the stress limit value that can bear with it compares, thereby determine wheel to the train speed of safe operation and the size of the load that can bear, to solve the safety problem of train operation.Simultaneously, also can obtain taking turns right performance characteristics such as Mode Shape, to solve the comfortableness problem of train operation by such experiment.
Existing wheel track contact l-G simulation test equipment, by stand, formations such as hydraulic loading system, strain-Sensing device, radio transmitting device and data processing equipment.During experiment, to take turns being installed on the stand, wheel be subjected to when contacting with track the axle of radial and axial acting force by hydraulic loading system and wheel to a generation axially and acting force radially simulating, detect the size of taking turns right stress by strain-Sensing device, transfer data to data processing equipment by wireless transport module again and carry out analyzing and processing.
The shortcoming of its existence is: during detection, wheel is to being in static state in testing process, and this does not conform to the right actual working state of wheel, especially is not inconsistent with bullet train wheel track contact condition when moving, can not satisfy under the bullet train operating condition monitoring of train operating safety situation.
The utility model content
The purpose of this utility model provides a kind of bullet train wheel Rail Contact Stresses testing apparatus, this testing equipment can simulate Train Wheel more truly under the operating mode that runs up, the stress that is produced, its monitoring result is more accurate, complete, accurate, for safety, the comfortableness of train operation provides reliable experimental more.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of bullet train wheel Rail Contact Stresses testing apparatus, comprise stand, axially, hydraulic radial loading system, strain-Sensing device, radio transmitting device and data processing equipment, its design feature is:
Described stand is provided with installs the right left and right wheel carrier of wheel, take turns right wheel shaft by Bearing Installation on left and right wheel carrier;
The left end of wheel shaft also links to each other with the output shaft of reductor by the dynamic load clutch coupling, the input shaft of reductor links to each other with the drive motor axle by shaft coupling, the right-hand member of wheel shaft links to each other with static load servomotor output shaft by the static load clutch coupling, and the static load servomotor is installed on the stand by the servomotor frame; Strain-Sensing device is installed in wheel to last, and strain-Sensing device links to each other with radio transmitting device, and the signal that radio transmitting device sends is received by data processing equipment and handles.
The using method of testing equipment of the present utility model and the course of work are:
By axial, hydraulic radial loading system to wheel to applying axially and radially acting force the contact condition of simulation wheel track.Drive motor starts, dynamic load clutch coupling closure, and the control wheel is to rotating.Take turns right velocity of rotation and pass through Electric Machine Control.In the process of wheel to motion, by being installed in wheel to the size of last strain-Sensing device detection wheel to suffered stress, and last radio transmitting device is launched by being installed in wheel, after data processing equipment is accepted, carry out data processing, obtain wheel under the motion state, train running speed is with the mutual relationship of taking turns counter stress and take turns right performance characteristics such as Mode Shape.
Compared with prior art, the beneficial effects of the utility model are:
The utility model can simulate the actual wheel track operating condition of bullet train, overcome existing testing equipment and can only simulate the technical matters that the static state of wheel track contact loads, thereby the stress data that the wheel of wheel track contact condition that can detect actual operating mode more realistically is right and take turns right performance characteristics such as Mode Shape, the security of more reliable assurance train operation and comfortableness.
The right-hand member of the utility model testing apparatus wheel shaft links to each other with static load servomotor output shaft by the static load clutch coupling, and during dynamic load, the static load clutch coupling makes wheel shaft separate with the static load servomotor, and the protection servomotor is not damaged; During static the loading, the static load clutch coupling makes wheel shaft and the combination of static load servomotor, the static load servomotor provides and overcomes the moment of torsion that wheel shaft rotates, servomotor also has the calibration function simultaneously, but driving wheel is to 360 ° of rotations and rest on arbitrarily angled static the loading, can realize taking turns the accurate loading to the position like this.
Above-mentioned axially, the concrete composition of hydraulic radial loading system is: the earrings of hydraulic cylinder is connected with application of force frame rear portion by pin, and application of force frame front portion is equipped with the application of force and takes turns, and application of force frame bottom is provided with the dovetail slide block, and the dovetail slide block set is combined in the dovetail slide on the stand.
Axial, the hydraulic radial loading system of the utility model testing apparatus contact radial and axial with wheel by the application of force wheel of force application mechanism front portion, and wheel is simulated the contact condition of wheel track to applying acting force.With in the prior art axially, hydraulic cylinder axle in the hydraulic radial loading system directly compares contacting with wheel, significantly reduced loading system and acted on wheel last friction force.Can reduce requirement like this, and can protect wheel right drive motor and static load servomotor power.The guiding mechanism of being made up of dovetail slide, dovetail slide block that install application of force frame bottom can guarantee that the axle of hydraulic cylinder only produces axially operation, avoids damaging hydraulic cylinder.
The dovetail slide of above-mentioned hydraulic radial loading system and the bottom of hydraulic cylinder all are installed on the stand by transfer table, and its concrete mounting structure is: the bottom of transfer table is equipped with axial slide block, and slide block set is combined on the guide rail on the stand; The bottom of transfer table also is equipped with nut seat, and axial screw mandrel is linked in the screw of nut seat, and on stand, an end of screw mandrel also links to each other with screw mandrel servomotor on the stand by shaft coupling by bearing fixing at the two ends of screw mandrel.
Like this, the screw mandrel servomotor drives screw mandrel and rotates, pass through screw pair, rotatablely moving of motor is converted into the rectilinear motion of axially (taking turns to axial) direction of transfer table, hydraulic cylinder on the transfer table and application of force frame are along the right axial tangential movement of wheel, can on axially, move at wheel thereby take turns the right radially point of application, under the actual operating mode when having simulated the train swing, wheel track contacting points position changing condition.Thereby make the utility model more approaching with true formula condition, the test result of testing equipment more accurately, reliably.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Description of drawings
Fig. 1 is the plan structure synoptic diagram of the utility model embodiment.
Fig. 2 is the A-A cut-open view of Fig. 1.
Fig. 3 is the B-B cutaway view Amplified image of Fig. 1.
Embodiment
Embodiment
Fig. 1-3 illustrates, and a kind of embodiment of the present utility model is, a kind of bullet train wheel Rail Contact Stresses testing apparatus comprises stand 1, axially, hydraulic radial loading system, strain-Sensing device, radio transmitting device and data processing equipment.
The left end of wheel shaft 9 also links to each other with the output shaft of reductor 5 by dynamic load clutch coupling 6, the input shaft of reductor 5 links to each other with 3 of drive motor by shaft coupling 4, the right-hand member of wheel shaft 9 links to each other with static load servomotor 19 output shafts by static load clutch coupling 17, and static load servomotor 19 is installed on the stand 1 by servomotor frame 18; Strain-Sensing device is installed in wheel on 8, and strain-Sensing device links to each other with radio transmitting device, and the signal that radio transmitting device sends is received by data processing equipment and handles.
Fig. 1-3 also illustrates, the concrete composition axial, the hydraulic radial loading system of this example is: the earrings of hydraulic cylinder 11 is connected with application of force frame 13 rear portions by pin 12, application of force frame 13 front portions are equipped with application of force wheel 14, application of force frame 13 bottoms are provided with dovetail slide block 15, and dovetail slide block 15 is linked in the dovetail slide 16 on the stand 1
Fig. 1,3 illustrates, the dovetail slide 16 of the hydraulic radial loading system that this is routine and the bottom of hydraulic cylinder 11 all are installed on the stand 1 by transfer table 23, its concrete mounting structure is: the bottom of transfer table 23 is equipped with axial slide block 22, and slide block 22 is linked on the guide rail 21 on the stand 1; The bottom of transfer table 23 also is equipped with nut seat 25, and axial screw mandrel 26 is linked in the screw of nut seat 25, and on stand 1, an end of screw mandrel 26 also links to each other with screw mandrel servomotor 28 on the stand 1 by shaft coupling by bearing fixing at the two ends of screw mandrel 26.
Claims (3)
1. a bullet train wheel Rail Contact Stresses testing apparatus comprises stand (1), axially, hydraulic radial loading system, strain-Sensing device, radio transmitting device and data processing equipment, it is characterized in that:
Described stand (1) is provided with installs the left and right wheel carrier (71,72) of wheel to (8), wheel to the wheel shaft (9) of (8) by Bearing Installation on left and right wheel carrier (71,72);
The left end of wheel shaft (9) also links to each other with the output shaft of reductor (5) by dynamic load clutch coupling (6), the input shaft of reductor (5) links to each other with drive motor (3) axle by shaft coupling (4), the right-hand member of wheel shaft (9) links to each other with static load servomotor (19) output shaft by static load clutch coupling (17), and static load servomotor (19) is installed on the stand (1) by servomotor frame (18); Strain-Sensing device is installed in wheel on (8), and strain-Sensing device links to each other with radio transmitting device, and the signal that radio transmitting device sends is received by data processing equipment and handles.
2. a kind of bullet train wheel Rail Contact Stresses testing apparatus as claimed in claim 1, it is characterized in that, described concrete composition axial, the hydraulic radial loading system is: the earrings of hydraulic cylinder (11) is connected with application of force frame (13) rear portion by pin (12), application of force frame (13) front portion is equipped with application of force wheel (14), application of force frame (13) bottom is provided with dovetail slide block (15), and dovetail slide block (15) is linked in the dovetail slide (16) on the stand (1).
3. a kind of bullet train wheel Rail Contact Stresses testing apparatus as claimed in claim 2, it is characterized in that, the dovetail slide (16) of described hydraulic radial loading system and the bottom of hydraulic cylinder (11) all are installed on the stand (1) by transfer table (23), its concrete mounting structure is: the bottom of transfer table (23) is equipped with axial slide block (22), and slide block (22) is linked on the guide rail (21) on the stand (1); The bottom of transfer table (23) also is equipped with nut seat (25), axial screw mandrel (26) is linked in the screw of nut seat (25), on stand (1), an end of screw mandrel (26) also links to each other with screw mandrel servomotor (28) on the stand (1) by shaft coupling by bearing fixing at the two ends of screw mandrel (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206015544U CN201917496U (en) | 2010-11-11 | 2010-11-11 | Testing equipment for contact stress of wheels and tracks of rapid train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206015544U CN201917496U (en) | 2010-11-11 | 2010-11-11 | Testing equipment for contact stress of wheels and tracks of rapid train |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201917496U true CN201917496U (en) | 2011-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206015544U Expired - Lifetime CN201917496U (en) | 2010-11-11 | 2010-11-11 | Testing equipment for contact stress of wheels and tracks of rapid train |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201917496U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032993A (en) * | 2010-11-11 | 2011-04-27 | 西南交通大学 | High-speed train wheel track contact stress test bench |
| CN103612648A (en) * | 2013-10-29 | 2014-03-05 | 南京南车浦镇城轨车辆有限责任公司 | Track traffic train residual stress distribution pre-warning system |
| CN103759885A (en) * | 2013-12-26 | 2014-04-30 | 长春轨道客车股份有限公司 | Force measurement wheel set calibration test stand |
-
2010
- 2010-11-11 CN CN2010206015544U patent/CN201917496U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032993A (en) * | 2010-11-11 | 2011-04-27 | 西南交通大学 | High-speed train wheel track contact stress test bench |
| CN102032993B (en) * | 2010-11-11 | 2012-03-21 | 西南交通大学 | High-speed train wheel track contact stress test bench |
| CN103612648A (en) * | 2013-10-29 | 2014-03-05 | 南京南车浦镇城轨车辆有限责任公司 | Track traffic train residual stress distribution pre-warning system |
| CN103612648B (en) * | 2013-10-29 | 2015-12-30 | 南京南车浦镇城轨车辆有限责任公司 | A kind of rail transit train residual stress distribution forewarn system |
| CN103759885A (en) * | 2013-12-26 | 2014-04-30 | 长春轨道客车股份有限公司 | Force measurement wheel set calibration test stand |
| CN103759885B (en) * | 2013-12-26 | 2015-11-11 | 长春轨道客车股份有限公司 | A kind of calibration test platform for force-measuring wheel set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110803 Effective date of abandoning: 20120321 |