CN210626063U - Translation type track-changing function and reliability test bed for track-changing bogie with variable track gauge - Google Patents
Translation type track-changing function and reliability test bed for track-changing bogie with variable track gauge Download PDFInfo
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- CN210626063U CN210626063U CN201921242839.0U CN201921242839U CN210626063U CN 210626063 U CN210626063 U CN 210626063U CN 201921242839 U CN201921242839 U CN 201921242839U CN 210626063 U CN210626063 U CN 210626063U
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Abstract
The utility model discloses a translation type gauge-variable bogie gauge-variable function and reliability test bed, which mainly comprises a mobile platform power driving device, a translation type gauge-variable device, a matched slide rail device, a gantry type suspension device, a transverse centering positioning device and an auxiliary supporting upright post; the translational track gauge converting device is driven by a power driving device of a moving platform to longitudinally reciprocate to unlock and lock a variable-track-gauge wheel pair, a matched slide rail device provides bearing and guiding functions for the translational track gauge converting device, a gantry type suspension device fixes the position of the wheel pair of a bogie and unloads the wheel pair, a transverse centering and positioning device enables the translational track gauge converting device to be centered all the time and do linear motion along the direction of a central line, and an auxiliary supporting upright post supports the installation of the translational track gauge converting device. The utility model discloses a moving platform's reciprocating motion simulation becomes the circulation of gauge wheel pair and becomes the rail action, for research gauge bogie becomes the rail function and reliability test provides the basis.
Description
Technical Field
The utility model relates to a rail vehicle dynamic simulation and test field, concretely relates to translation formula becomes gauge bogie and becomes rail function and reliability test platform.
Background
With the vigorous development of the economic zone of silk roads, railway transportation increasingly becomes one of the most main onshore trade channels in the continental asia-europe, China and countries along the line develop larger-range, higher-level and deeper-level regional cooperation, but as various countries adopt different gauge standards, various restrictions are brought to the development of international intermodal transportation, and the variable gauge bogie technology is developed and rapidly developed to solve the problem of direct operation in different sections of gauge.
In order to make the variable gauge bogie after production can accomplish the change smoothly on actual rail vehicle, need verify before the real vehicle assembly whether the variable gauge bogie can accomplish the change of track function, simultaneously, in order to detect its variable gauge mechanism reliability under the circulation operating condition, prior art is difficult to carry out the change of track function and reliability test to the variable gauge bogie, consequently the utility model provides a translation formula variable gauge bogie change of track function and reliability test platform, its simple structure adopts the track of the dull and stereotyped simulation relative movement that removes, and the gauge can adjust the change as required to can circulate the unblock and the locking and the change of track action of simulation variable gauge wheel pair, provide the basis for the function detection and the reliability analysis of variable gauge bogie track gauge transform.
Disclosure of Invention
In order to solve the problem, the utility model provides a translation formula becomes gauge bogie and becomes rail function and reliability test platform, adopt the track of the dull and stereotyped simulation relative movement that removes, dull and stereotyped straight reciprocating motion is realized by motor-rack and pinion mechanism, and the gauge can change gauge B (or A) from gauge A (or B) as required, the gauge unblock-locking mechanism of dull and stereotyped motion in-process drive becomes gauge bogie carries out gauge unblock and locking and the change rail action of variable gauge bogie with the change gauge mechanism, it can detect and become gauge bogie and can realize the change rail function, and carry out the reliability test of bogie gauge change mechanism through cyclic change rail action, and gauge unblock locking mechanism fatigue life test etc..
In order to achieve the above object, the present invention provides a test bed for track changing function and reliability of a translational track gauge-changing bogie, which mainly comprises a moving platform power driving device 1, a translational track gauge changing device 2, a matched slide rail device 3, a gantry type suspension device 4, a transverse centering positioning device 5, and an auxiliary support upright 6; the power driving device 1 of the moving platform is fixedly arranged on the ground, the translation type track gauge changing device 2 is driven to longitudinally move through a motor-gear rack transmission pair, and the translation type track gauge changing device 2 unlocks and locks a track gauge changing wheel set and provides a transverse guiding effect for the axial track gauge changing movement of the wheel set along a wheel shaft; the matched sliding rail devices 3 are symmetrically arranged below the translation type track gauge changing device 2 and provide bearing and longitudinal guiding functions for the translation type track gauge changing device; the transverse center line of the gantry type suspension device 4 and the transverse center line of the matched slide rail device 3 are in the same plane, and the gantry type suspension device 4 is mainly used for fixing the position of a wheel pair of a bogie and unloading the wheel pair; the transverse centering and positioning devices 5 are symmetrically arranged on two sides of the translation type track gauge changing device 2 and perform transverse centering and positioning on linear reciprocating motion of the translation type track gauge changing device; the auxiliary supporting upright posts 6 are uniformly distributed along the matched slide rail devices 3, the inner side surfaces of the auxiliary supporting upright posts and the inner side surfaces of the upright posts 4-1 of the gantry type suspension devices 4 are positioned in the same plane, and the transverse centering positioning devices 5 are supported.
The power driving device 1 for the mobile platform comprises: the gear-driven mechanism comprises a motor 1-1, a first coupler 1-2, a speed reducer 1-3, a second coupler 1-4, a transmission shaft 1-5, a first bearing 1-6, a first bearing seat 1-7, a gear 1-8, a second bearing 1-9, a second bearing seat 1-10 and a rack 1-11; the output shaft of the motor 1-1 is connected with the input shaft of the speed reducer 1-3 through a first coupler 1-2, the output shaft of the speed reducer 1-3 is connected with a transmission shaft 1-5 through a second coupler 1-4, and the transmission shaft 1-5 is supported on a first bearing seat 1-7 and a second bearing seat 1-10 through a first bearing 1-6 and a second bearing 1-9 respectively; the gears 1-8 are connected with the transmission shafts 1-5 through splines; the motor 1-1, the speed reducer 1-3, the first bearing seat 1-7 and the second bearing seat 1-10 are respectively fixed on the ground through foundation bolts; the motor 1-1 is mainly used for transmitting power to the gear 1-8 through the speed reducer 1-3 and the transmission shaft 1-5 so as to drive the gear 1-8 to rotate; the racks 1-11 are matched with the gears 1-8, so that the rotary motion of the gears 1-8 is converted into the linear translation motion of the racks 1-11; the power driving device 1 of the mobile platform can be arranged below the ground to reduce the height of the gantry properly.
The translation type track gauge changing device 2 comprises a moving platform 2-1, a rack mounting base 2-2, a supporting roller 2-3, a track gauge changing guide rail 2-4 and an unlocking and locking matching device 2-5; the moving platform 2-1 is formed by welding a hollow square tube and a rectangular tube to realize light weight, and a rack mounting seat 2-2 is welded on a central axis at the bottom of the moving platform 2-1; the rack 1-11 is fixedly arranged on the rack mounting seat 2-2 through a bolt, and the forward and reverse rotation motions of the motor 1-1 are converted into translation motions through a gear-rack meshing pair, so that the moving platform 2-1 is driven to reciprocate back and forth; the supporting rollers 2-3 are uniformly arranged along the two sides of the lower part of the moving platform 2-1, and each side is provided with 3 supporting rollers; the laying mode of the variable-gauge guide rail 2-4 on the moving platform 2-1 is divided into a gauge A guide section 2-4-1 and a gauge B guide section 2-4-2 according to different gauges, the two variable-gauge guide rails 2-4 are arranged in a splayed shape or a reversed splayed shape with reference to a central line, the gauge A and the gauge B can be adjusted according to the test requirement of a variable-gauge bogie, the variable-gauge guide rail 2-4 is fixed on the moving platform 2-1 through bolts, and the change of the gauge drives wheels on two sides to simultaneously move inwards or outwards relative to an axle of a variable-gauge wheel pair so as to realize the conversion of the wheel gauge; the unlocking and locking matching device 2-5 comprises a support frame 2-5-1, an unlocking and locking rail 2-5-2 and a connecting plate 2-5-3, the unlocking and locking rail 2-5-2 is welded on the support frame 2-5-1, the installation position of the unlocking and locking rail 2-5-2 can ensure that a small roller on a locking device of a track-variable wheel pair can just run in the rail, along with the reciprocating motion of the moving platform 2-1, a locking mechanism of the track-variable wheel pair completes unlocking and locking actions according to the stroke change of the unlocking and locking rail 2-5-2, each row of support frames 2-5-1 are welded into a whole through the connecting plate 2-5-3, and each row of support frames 2-5-1 are symmetrically welded on two sides of the upper surface of the moving platform 2-1 according.
The matched slide rail device 3 comprises two slide rails 3-1 and two mounting seats 3-2; the sliding rails 3-1 are fixedly connected with the mounting seats 3-2 through screws, the mounting seats 3-2 are connected with the ground through bolts, the transverse center line of the matched sliding rail device 3 and the transverse center line of the gantry type suspension device 4 are positioned in the same plane, the transverse distance between the two sliding rails 3-1 is equal to the distance between the supporting rollers 2-3 at the two sides under the moving platform 2-1, so that the supporting rollers 2-3 roll along the inner tracks of the sliding rails 3-1, and the sliding rails 3-1 provide bearing and guiding functions for the moving platform; the matched slide rail devices 3 are symmetrically arranged below two sides of the moving platform 2-1, and the length of the matched slide rail devices ensures that the supporting rollers 2-3 of the moving platform 2-1 always roll on the inner tracks of the slide rails 3-1 in a reciprocating motion stroke.
The gantry type suspension device 4 comprises an upright post 4-1, a supporting platform 4-2, a suspension beam 4-3, a lifting ring 4-4 and a T-shaped groove connecting plate 4-5; the gantry type suspension device 4 stretches across the moving platform 2-1, the lifting rings 4-4 are fixed on the T-shaped groove connecting plate 4-5 through screws, the distance between the two lifting rings is adjustable to meet the requirements of bogies with different structures, the size of the central hole of the two lifting rings 4-4 is determined according to the change of the axle diameter of the variable-gauge wheel pair, and the gantry type suspension device is mainly used for suspending and fixing the position of the variable-gauge wheel pair to enable the wheel pair to be suspended and unloaded to complete unlocking locking and track gauge conversion actions.
The transverse centering and positioning device 5 comprises a roller 5-1 and a lateral support 5-2, the lateral support 5-2 is fixed on the inner sides of an upright post 4-1 and an auxiliary support upright post 6 of the gantry type suspension device 4 through screws, the surface of the roller 5-1 on the transverse centering and positioning device 5 is in contact with the side surface of the moving platform 2-1, the transverse displacement of the moving platform 2-1 during longitudinal movement is limited and is not clamped, the translation type track gauge changing device 2 is enabled to always perform linear reciprocating motion along the direction of a central line in centering mode, and the length of the translation type track gauge changing device ensures that the side surface of the moving platform 2-1 is in contact with the surface of the roller 5-1 all the time in a reciprocating.
Compared with the prior art, the beneficial effects of the utility model are that:
a translation formula becomes gauge bogie and becomes rail function and reliability test platform, adopt the flat board simulation relative movement's that removes track, dull and stereotyped straight reciprocating motion is realized by motor-rack and pinion mechanism, the gauge unblock-locking mechanism and the gauge change mechanism of drive gauge bogie carry out unblock and locking and the action of becoming the rail among the dull and stereotyped motion process, realize endless gauge function through dull and stereotyped reciprocating motion and detect, the reliability test of gauge transform carries out, and the release mechanism of shaft and glide machanism's fatigue life test etc, accomplish the change smoothly for actual gauge rail-changing rail vehicle and provide experimental foundation.
Drawings
FIG. 1 is an axonometric view of a test bed for the track-changing function and reliability of a translational track gauge-changing bogie of the utility model;
FIG. 2 is a front view of a test bed for testing the track-changing function and reliability of a translational track gauge-changing bogie of the present invention;
FIG. 3 is a partial cross-sectional side view of a test bed for a track change function and reliability of a translational track gauge-variable bogie of the present invention;
FIG. 4 is a schematic view of the power driving device of the mobile platform according to the present invention;
fig. 5 is an axonometric view of the translation type gauge changing device of the present invention;
fig. 6 is a top view of a laying method of the variable-pitch guide rail of the present invention;
FIG. 7 is a detail view of the unlocking locking rail of the present invention;
fig. 8 is an isometric view of a mating slide rail apparatus of the present invention;
figure 9 is an isometric view of a gantry suspension apparatus of the present invention;
FIG. 10 is a schematic enlarged view of a portion of the T-shaped groove and the hanging ring of the present invention;
figure 11 is an isometric view of a transverse centering device according to the present invention.
1. The device comprises a mobile platform power driving device, 1-1 motor, 1-2 coupler, 1-3 speed reducer, 1-4 coupler, 1-5 transmission shaft, 1-6 bearing, 1-7 bearing seat, 1-8 gear, 1-9 bearing, 1-10 bearing seat and 1-11 rack, wherein the mobile platform power driving device comprises a motor, 1-2 coupler, 1-3 speed reducer, 1-4 gear seat, 1-5 transmission shaft, 1-6 bearing seat, 1-7 bearing seat, 1-8 gear, 1-9 bearing seat, 1-10 bearing seat and 1-; 2. the track gauge control device comprises a translation type track gauge conversion device, 2-1 parts of a moving flat plate, 2-2 parts of a rack mounting seat, 2-3 parts of a support roller, 2-4 parts of a track gauge changing guide rail, 2-4-1 parts of a track gauge A guide section, 2-4-2 parts of a track gauge B guide section, 2-5 parts of an unlocking and locking matching device, 2-5-1 parts of a support frame, 2-5-2 parts of an unlocking and locking beam and 2-5-3 parts of a connecting plate; 3. the device comprises a matched slide rail device, 3-1 slide rail and 3-2 mounting seat; 4. the method comprises the following steps of (1) a gantry type suspension device, 4-1. an upright post, 4-2. a supporting platform, 4-3. a suspension beam, 4-4. a hanging ring and 4-5. a T-shaped groove connecting plate; 5. the device comprises a transverse centering positioning device, a roller and a lateral support, wherein the roller is 5-1, and the lateral support is 5-2; 6. and (5) auxiliary supporting columns.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings:
referring to fig. 1 to 3, the rail-changing function and reliability test bed for a translational variable gauge bogie according to the present invention mainly comprises a moving platform power driving device 1, a translational variable gauge bogie 2, a matched slide rail device 3, a gantry suspension device 4, a transverse centering positioning device 5, and an auxiliary support upright 6; the power driving device 1 of the moving platform is fixedly arranged on the ground, the translation type track gauge changing device 2 is driven to longitudinally move through a motor-gear rack transmission pair, and the translation type track gauge changing device 2 unlocks and locks a track gauge changing wheel set and provides a transverse guiding effect for the axial track gauge changing movement of the wheel set along a wheel shaft; the matched sliding rail devices 3 are symmetrically arranged below the translation type track gauge changing device 2 and provide bearing and longitudinal guiding functions for the translation type track gauge changing device; the transverse center line of the gantry type suspension device 4 and the transverse center line of the matched slide rail device 3 are in the same plane, and the gantry type suspension device 4 is mainly used for fixing the wheel pair position of the bogie and unloading the wheel pair; the transverse centering and positioning devices 5 are symmetrically arranged on two sides of the translation type track gauge changing device 2 and perform transverse centering and positioning on linear reciprocating motion of the translation type track gauge changing device; the auxiliary supporting upright posts 6 are uniformly distributed along the matched slide rail devices 3, the inner side surfaces of the auxiliary supporting upright posts and the inner side surfaces of the upright posts 4-1 of the gantry type suspension devices 4 are positioned in the same plane, and the transverse centering positioning devices 5 are supported.
Referring to fig. 4, the power driving apparatus 1 for moving platform includes: the gear-driven mechanism comprises a motor 1-1, a first coupler 1-2, a speed reducer 1-3, a second coupler 1-4, a transmission shaft 1-5, a first bearing 1-6, a first bearing seat 1-7, a gear 1-8, a second bearing 1-9, a second bearing seat 1-10 and a rack 1-11; an output shaft of the motor 1-1 is connected with an input shaft of the speed reducer 1-3 through a first coupler 1-2, the motor 1-1 is fixed on the ground through foundation bolts, and the motor 1-1 mainly functions to transmit power to the gear 1-8 through the speed reducer 1-3 and the transmission shaft 1-5 so as to drive the gear 1-8 to rotate; the output shaft of the speed reducer 1-3 is connected with the transmission shaft 1-5 through a second coupler 1-4 and is fixedly arranged on the ground through a bolt; the gears 1-8 are connected with the transmission shafts 1-5 through splines, and two ends of each transmission shaft 1-5 are respectively supported by a first bearing 1-6 and a second bearing 1-4; the first bearing 1-6 and the second bearing 1-4 are respectively supported by a first bearing seat 1-7 and a second bearing seat 1-10 which are fixedly arranged on the ground; the racks 1-11 are matched with the gears 1-8, so that the rotary motion of the gears 1-8 is converted into the linear translation motion of the racks 1-11; the power driving device 1 of the mobile platform can be arranged below the ground to reduce the height of the gantry properly.
Referring to fig. 5 to 7, the translation type track gauge changing device 2 comprises a moving platform 2-1, a rack mounting base 2-2, a supporting roller 2-3, a track gauge changing guide rail 2-4 and an unlocking and locking matching device 2-5; the moving platform 2-1 is formed by welding a hollow square tube and a rectangular tube to realize light weight, and a rack mounting seat 2-2 is welded on a central axis at the bottom of the moving platform 2-1; the rack 1-11 is fixedly arranged on the rack mounting seat 2-2 through a bolt, and the forward and reverse rotation motions of the motor 1-1 are converted into translation motions through a gear-rack meshing pair, so that the moving platform 2-1 is driven to reciprocate back and forth; the supporting rollers 2-3 are uniformly arranged along the two sides of the lower part of the moving platform 2-1, and each side is provided with 3 supporting rollers; the laying mode of the variable-gauge guide rail 2-4 on the moving platform 2-1 is divided into a gauge A guide section 2-4-1 and a gauge B guide section 2-4-2 according to different gauges, the two variable-gauge guide rails 2-4 are arranged in a splayed shape or a reversed splayed shape with reference to a central line, the gauge A and the gauge B can be adjusted according to the test requirement of a variable-gauge bogie, the variable-gauge guide rail 2-4 is fixed on the moving platform 2-1 through bolts, and the change of the gauge drives wheels on two sides to simultaneously move inwards or outwards relative to an axle of a variable-gauge wheel pair so as to realize the conversion of the wheel gauge; the unlocking and locking matching device 2-5 comprises a support frame 2-5-1, an unlocking and locking rail 2-5-2 and a connecting plate 2-5-3, the unlocking and locking rail 2-5-2 is welded on the support frame 2-5-1, the installation position of the unlocking and locking rail 2-5-2 can ensure that a small roller on a locking device of a track-variable wheel pair can just run in the rail, along with the reciprocating motion of the moving platform 2-1, a locking mechanism of the track-variable wheel pair completes unlocking and locking actions according to the stroke change of the unlocking and locking rail 2-5-2, each row of support frames 2-5-1 are welded into a whole through the connecting plate 2-5-3, and each row of support frames 2-5-1 are symmetrically welded on the moving platform 2-1 according to a specified distance.
Referring to fig. 8, the matched slide rail device 3 includes two slide rails 3-1 and two mounting seats 3-2; the sliding rails 3-1 are fixedly connected with the mounting base 3-2 through screws, the mounting base 3-2 is connected with the ground through bolts, the transverse center line of the matched sliding rail device 3 and the transverse center line of the gantry type suspension device 4 are in the same plane, the distance between the two sliding rails 3-1 is equal to the distance between the supporting rollers 2-3 on the two sides under the movable platform 2-1, so that the supporting rollers 2-3 roll along the inner tracks of the sliding rails 3-1, and the sliding rails 3-1 provide bearing and guiding functions for the movable platform.
Referring to fig. 9 and 10, the gantry type suspension device 4 comprises a column 4-1, a supporting platform 4-2, a suspension beam 4-3, a lifting ring 4-4 and a T-shaped groove connecting plate 4-5; the gantry type suspension device 4 spans across the moving platform 2-1, and the transverse center line of the gantry type suspension device is superposed with the center line of the matched slide rail device 3; the lifting rings 4-4 are fixed on the T-shaped groove connecting plates 4-5 through screws, the distance between the two lifting rings is adjustable to meet the requirements of bogies with different structures, the size of the central hole of the two lifting rings 4-4 is determined according to the change of the axle diameter of the variable-gauge wheel pair, and the central hole mainly plays a role in suspending and fixing the position of the variable-gauge wheel pair so that the wheel pair is suspended to unload to complete unlocking and locking and track gauge conversion actions.
Referring to fig. 11, the transverse centering and positioning device 5 includes a roller 5-1 and a lateral support 5-2, the lateral support 5-2 is connected to the inner sides of the upright 4-1 and the auxiliary support upright 6 of the gantry type suspension device 4 by screws, the surface of the roller 5-1 on the transverse centering and positioning device 5 is in contact with the side surface of the moving platform 2-1, so as to limit the transverse displacement and no clamping stagnation when the moving platform 2-1 moves longitudinally, so that the translation type track gauge changing device 2 always performs a linear reciprocating motion in a centering direction along the center line direction, and the length of the linear reciprocating motion ensures that the side surface of the moving platform 2-1 is in contact with the surface of the roller 5-1 in a reciprocating motion stroke.
The test bed for the track changing function and the reliability of the translation type track gauge-changing bogie is used for detecting whether the track gauge-changing bogie can realize the track changing function or not, performing the reliability test of a bogie track gauge-changing mechanism through the circular track changing action, performing the fatigue life test of a track gauge unlocking locking mechanism and the like, and mainly comprises the following steps:
the method comprises the following steps: the gantry type suspension device suspends and fixes the position of the wheel pair, so that the wheel pair is suspended and unloaded;
step two: the power driving device of the moving platform drives the translation type track gauge changing device to reciprocate along the matched slide rail device, and the transverse centering and positioning device limits the movement direction to always center and do linear motion along the central line;
step three: the track gauge unlocking-locking mechanism of the track gauge-variable bogie carries out track gauge unlocking and locking and track changing actions of the track gauge-variable bogie according to the stroke change of the unlocking-locking track, wheels on two sides simultaneously move inwards or outwards relative to a wheel axle under the guiding drive of the track gauge-variable guide track during track gauge changing, the conversion of the track gauge is realized, the cyclic unlocking, locking and track changing actions are realized through the reciprocating motion of the moving platform, and the reliability test of track gauge conversion is carried out.
Claims (3)
1. A test bed for the rail changing function and reliability of a translation type variable-gauge bogie is characterized by mainly comprising a moving platform power driving device (1), a translation type variable-gauge bogie rail changing device (2), a matched slide rail device (3), a gantry type suspension device (4), a transverse centering positioning device (5) and an auxiliary supporting upright post (6); the power driving device (1) of the moving platform is fixedly arranged on the ground, the translation type track gauge changing device (2) is driven to longitudinally move through a motor-gear rack transmission pair, and the translation type track gauge changing device (2) unlocks and locks the track gauge changing wheel set and provides a guiding effect for the axial movement of the wheel set; the matched sliding rail devices (3) are symmetrically arranged below the translation type track gauge changing device (2) to provide bearing and guiding functions for the translation type track gauge changing device; the transverse center line of the gantry type suspension device (4) and the transverse center line of the matched slide rail device (3) are in the same plane, and the gantry type suspension device (4) is mainly used for fixing the wheel pair position of the variable-gauge bogie and unloading the wheel pair; the transverse centering and positioning devices (5) are symmetrically arranged on two sides of the translation type track gauge changing device (2) and perform transverse centering and positioning on linear reciprocating motion of the translation type track gauge changing device; the auxiliary supporting upright posts (6) are uniformly distributed along the matched slide rail devices (3), the inner side surfaces of the auxiliary supporting upright posts and the inner side surface of an upright post (4-1) of the gantry type suspension device (4) are positioned in the same plane, and the transverse centering positioning device (5) is supported;
the power driving device (1) for the mobile platform comprises: the gear-driven gearbox comprises a motor (1-1), a first coupler (1-2), a speed reducer (1-3), a second coupler (1-4), a transmission shaft (1-5), a first bearing (1-6), a first bearing seat (1-7), a gear (1-8), a second bearing (1-9), a second bearing seat (1-10) and a rack (1-11); an output shaft of the motor (1-1) is connected with an input shaft of the speed reducer (1-3) through a first coupler (1-2), an output shaft of the speed reducer (1-3) is connected with a transmission shaft (1-5) through a second coupler (1-4), and the transmission shaft (1-5) is supported on a first bearing seat (1-7) and a second bearing seat (1-10) through a first bearing (1-6) and a second bearing (1-9) respectively; the gears (1-8) are connected with the transmission shafts (1-5) through splines; the motor (1-1), the speed reducer (1-3), the first bearing seat (1-7) and the second bearing seat (1-10) are fixed on the ground through foundation bolts respectively; the motor (1-1) is mainly used for transmitting power to the gear (1-8) through the speed reducer (1-3) and the transmission shaft (1-5), so that the gear (1-8) is driven to rotate; the racks (1-11) are meshed with the gears (1-8), so that the rotary motion of the gears (1-8) is converted into the linear translation motion of the racks (1-11); the power driving device (1) of the mobile platform can be arranged below the ground so as to properly reduce the height of the gantry.
2. The test bed for the track changing function and the reliability of the translational variable-gauge bogie according to claim 1 is characterized in that the translational variable-gauge bogie track changing device (2) comprises a moving platform (2-1), a rack mounting seat (2-2), a supporting roller (2-3), a variable-gauge guide rail (2-4) and an unlocking and locking matching device (2-5); the moving platform (2-1) is formed by welding a hollow square tube and a rectangular tube to realize light weight, and a rack mounting seat (2-2) is welded on a central axis at the bottom of the moving platform (2-1); the rack (1-11) is fixedly arranged on the rack mounting seat (2-2) through a bolt, and the forward and reverse rotation motions of the motor (1-1) are converted into translation motions through a gear-rack meshing pair, so that the moving platform (2-1) is driven to reciprocate back and forth; the supporting rollers (2-3) are uniformly arranged along the two sides of the lower part of the moving platform (2-1), and each side is provided with 3 supporting rollers; the laying mode of the variable-gauge guide rail (2-4) on the mobile platform (2-1) is divided into a gauge A guide section (2-4-1) and a gauge B guide section (2-4-2) according to different gauges, the two variable-gauge guide rails (2-4) are arranged in a splayed or inverted splayed mode with reference to a center line, the gauge A and the gauge B can be adjusted according to the test requirements of a variable-gauge bogie, the variable-gauge guide rail (2-4) is fixed on the mobile platform (2-1) through bolts, and the change of the gauges drives wheels on two sides to simultaneously move inwards or outwards relative to an axle of a variable-gauge wheel pair so as to realize the conversion of the wheel gauges; the unlocking and locking matching device (2-5) comprises a support frame (2-5-1), the device comprises unlocking locking rails (2-5-2) and connecting plates (2-5-3), wherein the unlocking locking rails (2-5-2) are welded on support frames (2-5-1), the mounting position of the unlocking locking rails can ensure that small rollers on a locking device of a variable-track-pitch wheel pair can run in the rails, along with the reciprocating motion of a moving platform (2-1), a locking mechanism of the variable-track-pitch wheel pair completes unlocking and locking actions according to the stroke change of the unlocking locking rails (2-5-2), the support frames (2-5-1) in each row are welded into a whole through the connecting plates (2-5-3), and the support frames (2-5-1) in each row are symmetrically welded on two sides of the upper surface of the moving platform (2-1) according to a specified distance.
3. The test bed for the rail changing function and reliability of the translational variable-gauge bogie according to claim 1 is characterized in that the matched slide rail device (3), the transverse centering positioning device (5) and the auxiliary support upright post (6) jointly carry out bearing guiding and centering limiting on the longitudinal movement of the translational variable-gauge bogie (2); the gantry type suspension device (4) suspends and fixes the position of the variable-gauge wheel set, so that the wheel set is suspended and unloaded, and the installation of the transverse centering positioning device (5) is supported; the matched sliding rail device (3) comprises two sliding rails (3-1) and two mounting seats (3-2); the sliding rail (3-1) is fixedly connected with the mounting seat (3-2) through a screw, the mounting seat (3-2) is connected with the ground through a bolt, the transverse center line of the matched sliding rail device (3) and the transverse center line of the gantry type suspension device (4) are positioned in the same plane, the distance between the two sliding rails (3-1) is equal to the distance between the supporting rollers (2-3) at the two sides under the moving platform (2-1), so that the supporting rollers (2-3) roll along the inner track of the sliding rail (3-1), and the sliding rail (3-1) provides bearing and guiding effects for the moving platform; the matched sliding rail devices (3) are symmetrically arranged below two sides of the moving platform (2-1), and the length of the matched sliding rail devices ensures that the supporting rollers (2-3) of the moving platform (2-1) always roll on the inner rail of the sliding rail (3-1) in a reciprocating motion stroke; the gantry type suspension device (4) comprises an upright post (4-1), a supporting platform (4-2), a suspension beam (4-3), a lifting ring (4-4) and a T-shaped groove connecting plate (4-5); the gantry type suspension device (4) stretches across the moving platform (2-1), the lifting rings (4-4) are fixed on a T-shaped groove connecting plate (4-5) through screws, the distance between the two lifting rings is adjustable to meet the requirements of bogies with different structures, the size of the center holes of the two lifting rings (4-4) is determined according to the change of the axle diameter of the variable-gauge wheel pair, and the gantry type suspension device is mainly used for suspending and fixing the position of the variable-gauge wheel pair to enable the wheel pair to be suspended and unloaded to complete unlocking locking and track gauge conversion actions; the transverse centering and positioning device (5) comprises a roller (5-1) and a lateral support (5-2), the lateral support (5-2) is connected to the inner sides of an upright post (4-1) and an auxiliary support upright post (6) of the gantry type suspension device (4) through screws, the surface of the roller (5-1) on the transverse centering and positioning device (5) is in contact with the side surface of the moving platform (2-1), the transverse displacement and clamping stagnation during the longitudinal movement of the moving platform (2-1) are limited, the translation type track gauge changing device (2) is always centered and does linear reciprocating motion along the direction of a central line, and the length of the translation type track gauge changing device ensures that the side surface of the moving platform (2-1) is always in contact with the surface of the roller (5-1) in a reciprocating motion stroke.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274780A (en) * | 2019-08-02 | 2019-09-24 | 吉林大学 | A kind of parallel-moving type gauge-changeable bogie becomes rail function and reliability test bench |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274780A (en) * | 2019-08-02 | 2019-09-24 | 吉林大学 | A kind of parallel-moving type gauge-changeable bogie becomes rail function and reliability test bench |
| CN110274780B (en) * | 2019-08-02 | 2024-04-12 | 吉林大学 | Translation formula gauge bogie becomes rail function and reliability test platform |
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