阅读说明：本技术 一种变轴距转向架的路面配套结构 (Road surface matching structure of variable-wheelbase bogie ) 是由 梁波 于 2021-02-24 设计创作，主要内容包括：本发明涉及轨道交通设备技术领域,且公开了一种变轴距转向架的路面配套结构,包括第一轨和第二轨,所述第一轨和第二轨均固定连接有抬高轨,所述抬高轨的两侧均设有与轴箱对应的轴承筒,所述抬高轨将列车抬高到与轴承筒同高。该变轴距转向架的路面配套结构,通过夹轮小车的夹持,在接近车轴的地面推动车轮移动,使受力更加均匀,同时夹持提供支撑,也能进一步保证车轴受力均匀,并且,车轮不会轨道发生摩擦,提高整体的使用寿命,其次,若车轮未成功解锁,较大的作用力作用在夹轮小车上将定位块拉断,一方面,带来的损坏较小,不影响配套结构的正常工作,另一方面,为司机提供了反应时间,降低损失扩大的几率。(The invention relates to the technical field of rail transit equipment, and discloses a road surface matching structure of a variable-wheelbase bogie, which comprises a first rail and a second rail, wherein the first rail and the second rail are both fixedly connected with a lifting rail, two sides of the lifting rail are both provided with bearing barrels corresponding to axle boxes, and the lifting rail lifts a train to the same height as the bearing barrels. This supporting structure in road surface of variable wheel base bogie, centre gripping through pressing from both sides the wheel dolly, promote the wheel removal on the ground that is close the axletree, make the atress more even, the centre gripping provides the support simultaneously, it is even also to further guarantee the axletree atress, and, the wheel can not the track take place to rub, improve holistic life, secondly, if the wheel unblock is unsuccessful, great effort is used in on pressing from both sides the wheel dolly and is broken the locating piece, on the one hand, the damage brought is less, do not influence supporting structure's normal work, on the other hand, for the driver provides reaction time, reduce the probability that the loss enlarges.)

1. The utility model provides a supporting structure in road surface of variable wheel base bogie, includes first rail (1) and second rail (2), rail (3) are raised to first rail (1) and the equal fixedly connected with of second rail (2), the both sides of raising rail (3) all are equipped with bearing cylinder (5) that correspond with the axle box, it raises the train to reach with bearing cylinder (5) with rail (3) and with high, its characterized in that: the bearing cylinder (5) consists of slow descending rollers at two ends and a horizontal roller at the middle part, the unlocking rail (4) is fixedly connected on the bearing cylinder (5), a guide groove (10) is arranged between the two lifting rails (3) connected with the first rail (1) and the second rail (2), the guide groove (10) is movably connected with a wheel clamping trolley (7) which can clamp wheels, the initial position of the pinch roller trolley (7) corresponds to the junction position of the slow descending roller and the horizontal roller of the bearing cylinder (5), a preparation groove (6) is arranged on the inner side of the guide groove (10), a positioning plate (9) is arranged at the initial position of the preparation groove (6) corresponding to the pinch roller trolley (7), an inclined displacement cross rail (8) is arranged between the preparation groove (6) and the guide groove (10), and one side of the connecting preparation groove (6) is higher than one side of the connecting guide groove (10), and the outer side of the guide groove (10) is connected with a separating groove (11).

2. The road surface mating structure of the variable-wheelbase bogie as claimed in claim 1, wherein: the preparation groove (6) is positioned on an inclined plane higher than the guide groove (10), the separation groove (11) is positioned on an inclined plane lower than the guide groove (10), the preparation groove (6) is perpendicular to the guide groove (10), and the entrance width of the separation groove (11) is two to three times that of the guide groove (10).

3. The road surface mating structure of the variable-wheelbase bogie as claimed in claim 1, wherein: press from both sides round dolly (7) including automobile body (71), automobile body (71) bottom fixedly connected with locating piece (73), locating piece (73) are at guide way (10), preparation groove (6) and separating tank (11) to the direction of motion of pressing from both sides round dolly (7) guide and retrain, automobile body (71) swing joint has clamp plate (75), the both sides of automobile body (71) all articulate lever (76), it has push rod (74) to articulate between clamp plate (75) and lever (76), lever (76) articulate splint (77), the bottom of automobile body (71) is equipped with ball (72), splint (77) press from both sides the wheel just, and leave the clearance between the bottom of clamp plate (75) and automobile body (71).

4. The road surface mating structure of the variable-wheelbase bogie as claimed in claim 1, wherein: the four groups of the splints (77) are used for clamping wheel-side rims, the radian of the two farthest splints (77) is less than 180 degrees, and the radian of the two middle splints (77) is greater than 60 degrees.

5. The road surface mating structure of the variable-wheelbase bogie as claimed in claim 1, wherein: the positioning block (73) is fixedly connected with the vehicle body (71) through a shear bolt.

6. The road surface mating structure of the variable-wheelbase bogie as claimed in claim 1, wherein: and magnets are arranged inside the clamping plates (77).

Technical Field

The invention relates to the technical field of rail transit equipment, in particular to a road surface matching structure of a variable-wheelbase bogie.

Background

The design standards of railway tracks in different countries or different regions may be different, which results in different track gauges, so that trains across countries or regions need to be replaced, bogies need to be replaced, or trains with variable bogie wheelbases need to be used if trains across countries or regions meet the railways with different standards.

When the bogie changes the wheel base, the supporting mechanism on ground is required to assist, generally including the unlocking rail, a bearing section of thick bamboo, lifting rail and guided way isotructure, the locking of train lock contact wheel under the effect of unlocking rail, then advance by the bearing section of thick bamboo support, when advancing, utilize the guided way to remove the wheel that is held up, realize the derailment, in-process once more, the wheel can produce frictional force with the side of guided way, and because the stress point is located the bottom, the effort that the axle sleeve received is uneven, also can reduce the life of axle sleeve.

Secondly, if the wheels are not unlocked under the action of the unlocking rail due to some reason, larger acting force can be generated between the wheels and the guide rail due to the fact that the wheels cannot be found in time and brake in time, and the train is probably driven to damage the guide rail or cause a train derailment accident.

Disclosure of Invention

Aiming at the defects of the background technology, the invention provides the technical scheme of the road surface matching structure of the variable-wheelbase bogie, which has the advantages of small side surface abrasion, high safety and the like and solves the problems in the background technology.

The invention provides the following technical scheme: a road surface matching structure of a variable-wheelbase bogie comprises a first rail and a second rail, wherein the first rail and the second rail are fixedly connected with lifting rails, bearing barrels corresponding to axle boxes are arranged on two sides of the lifting rails, the lifting rails lift a train to the same height as the bearing barrels, each bearing barrel consists of slow descending rollers at two ends and a horizontal roller at the middle part, unlocking rails are fixedly connected onto the bearing barrels, a guide groove is arranged between the two lifting rails connected with the first rail and the second rail, a clamping wheel trolley capable of clamping wheels is movably connected with the guide groove, the initial position of the clamping wheel trolley corresponds to the junction position of the slow descending rollers and the horizontal roller of the bearing barrels, a preparation groove is arranged on the inner side of the guide groove, a positioning plate is arranged at the initial position of the preparation groove corresponding to the clamping wheel trolley, an inclined alternative transverse rail is arranged between the preparation groove and the guide groove, and one side of the connection preparation groove is higher than one side of the connection guide groove, and a separation groove is connected to the outer side of the guide groove.

Preferably, the preliminary groove is located on an inclined surface higher than the guide groove, the separation groove is located on an inclined surface lower than the guide groove, the preliminary groove is perpendicular to the guide groove, and an entrance width of the separation groove is two to three times that of the guide groove.

Preferably, the pinch roller trolley comprises a trolley body, a positioning block is fixedly connected to the bottom of the trolley body, the positioning block guides and restrains the movement direction of the pinch roller trolley in a guide groove, a preparation groove and a separation groove, a pressing plate is movably connected to the trolley body, levers are hinged to two sides of the trolley body, push rods are hinged between the pressing plate and the levers, the levers are hinged to clamping plates, balls are arranged at the bottom of the trolley body, the clamping plates clamp wheels right, and gaps are reserved between the bottoms of the pressing plates and the trolley body.

Preferably, the clamping plates are provided with four groups and are used for clamping wheel side rims, the radian of the two farthest clamping plates is smaller than 180 degrees, and the radian of the two middle clamping plates is larger than 60 degrees.

Preferably, the positioning block is fixedly connected with the vehicle body through a shear bolt.

Preferably, a magnet is arranged inside the clamping plate.

The invention has the following beneficial effects:

1. this supporting structure in road surface of variable wheel base bogie through the centre gripping of pressing from both sides the wheel dolly, promotes the wheel and removes on the ground that is close the axletree, makes the atress more even, and the centre gripping provides the support simultaneously, also can further guarantee that the axletree atress is even to, the wheel can not the track take place the friction, improves holistic life.

2. This supporting structure in road surface of variable wheel base bogie, if the wheel is not successful the unblock, great effort is acted on and is broken the locating piece on pressing from both sides the round dolly, and on the one hand, the damage that brings is less, does not influence supporting structure's normal work, and on the other hand provides reaction time for the driver, reduces the probability that the loss enlarges.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a side view of a bearing cartridge of the present invention;

FIG. 3 is a diagram showing the positional relationship among a guide groove, a separation groove and a preliminary groove in the present invention;

FIG. 4 is a front view of the pinch roller cart of the present invention;

FIG. 5 is a side view of the pinch roller car of the present invention.

In the figure: 1. a first rail; 2. a second rail; 3. raising the rail; 4. unlocking the rail; 5. a bearing cartridge; 6. preparing a groove; 7. a pinch roller trolley; 71. a vehicle body; 72. a ball bearing; 73. positioning blocks; 74. a push rod; 75. pressing a plate; 76. a lever; 77. a splint; 8. a displacement cross rail; 9. positioning a plate; 10. a guide groove; 11. and (4) a separation groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, a road surface supporting structure of a variable wheelbase bogie comprises a first rail 1 and a second rail 2, wherein the first rail 1 and the second rail 2 are both fixedly connected with a lifting rail 3, a train is lifted under the action of the lifting rail 3, two sides of the lifting rail 3 are both provided with bearing barrels 5 corresponding to axle boxes, the lifting rail 3 lifts the train to the same height as the bearing barrels 5, the bearing barrels 5 are composed of slow descending rollers at two ends and a horizontal roller at the middle part, unlocking rails 4 are fixedly connected to the bearing barrels 5, wheels of the train are unlocked or locked by the unlocking rails 4, a guide groove 10 is arranged between the two lifting rails 3 connected with the first rail 1 and the second rail 2, the guide groove 10 is movably connected with a wheel clamping trolley 7 capable of clamping the wheels, the starting position of the wheel clamping trolley 7 corresponds to the junction position of the slow descending rollers and the horizontal roller of the bearing barrels 5, and the wheels are clamped in the wheel clamping trolley 7 during the descending process of the train, the wheel clamping trolley 7 moves along the guide grooves 10 to drive wheels to move to finish axle distance changing, the inner sides of the guide grooves 10 are provided with a preparation groove 6, the inner side of each guide groove 10 is provided with one, the initial position of the preparation groove 6, which corresponds to the wheel clamping trolley 7, is provided with a positioning plate 9, the preparation groove 6 is provided with a trolley to enable the wheel clamping trolley 7 to be abutted against each other, an inclined displacement cross rail 8 is arranged between the preparation groove 6 and the guide grooves 10, one side of the preparation groove 6 is higher than one side of the guide grooves 10, the outer side of each guide groove 10 is connected with a separating groove 11, a train is lifted by the slowly descending rollers in the outlet direction and then separated from the wheel clamping trolley 7, the wheel clamping trolley 7 slides away from the separating grooves 11, and influence on the wheel clamping trolley 7 at the rear side is avoided.

Referring to fig. 3, the preparation groove 6 is located on an inclined plane higher than the guide groove 10, the separation groove 11 is located on an inclined plane lower than the guide groove 10, and the pinch roller cart 7 is ensured to slide in and out in time by utilizing gravitational potential energy, the preparation groove 6 is perpendicular to the guide groove 10 to ensure the timeliness of sliding in, and the entering width of the separation groove 11 is two to three times of that of the guide groove 10 to ensure the reliability of sliding out.

Referring to fig. 4, the pinch roller car 7 includes a car body 71, a positioning block 73 is fixedly connected to the bottom of the car body 71, the positioning block 73 guides and restricts the movement direction of the pinch roller car 7 in the guide groove 10, the preparation groove 6 and the separation groove 11, the car body 71 is movably connected with a pressing plate 75, levers 76 are hinged to both sides of the car body 71, a push rod 74 is hinged between the pressing plate 75 and the levers 76, the levers 76 are hinged to a clamping plate 77, the pressing plate 75 presses the levers 76 downward to drive the levers 76 to rotate and clamp the wheels, the surface of the clamping plate 77 is rough, balls 72 are arranged at the bottom of the car body 71, the friction force generated when the pinch roller car 7 moves is reduced by walking through the balls 72, when the axle box is located on the horizontal roller, the clamping plate 77 just clamps the wheels, and a gap is left between the bottom of the pressing plate 75 and the car.

Referring to fig. 5, four sets of clamping plates 77 are provided for clamping the wheel side rim, the radian of the two farthest clamping plates 77 is less than 180 degrees, and the radian of the two middle clamping plates 77 is greater than 60 degrees, so that the lever 76 is too long and interferes with the movement of the wheel, and too small results in uneven stress.

Wherein, locating piece 73 passes through shear bolt and automobile body 71 fixed connection, and when the unblock failed, automobile body 71 and locating piece 73 produce great effort and break it, then avoid the injury to axletree or guide way 10, press from both sides the wheel dolly 7 and break the back, perhaps stop through formulating, the wheel probably falls the rail this moment, and the injury is less.

Wherein, the interior of the clamping plate 77 is provided with a magnet which drives the movement with the attraction of the train on the one hand and assists in clamping the wheels on the other hand.

The working principle and the working process of the invention are as follows:

when the train is changed into rails, the train is lifted to the same height with the edge of the bearing cylinder 5 by the lifting rail 3, the axle box frame of the train is arranged on the bearing cylinder 5, then the height is reduced along the slow descending roller, the pinch roller trolley 7 is pressed and clamped at the junction with the horizontal roller, the pinch roller trolley 7 drives the wheels to change direction under the guidance of the guide groove 10, when the pinch roller trolley 7 moves away, the pinch roller trolley 7 on the preparation groove 6 replaces under the gravitational potential energy to clamp the next group of wheels, and after the pinch roller trolley 7 clamps the wheels and changes the track pitch to the proper position, the train is lifted at the junction, the pinch roller trolley 7 is separated from the wheels and slides out along the separation groove 11 later to avoid interfering the next group of pinch roller trolleys 7.

When the unlocking of the unlocking rail 4 fails, an overlarge acting force acts on the wheel clamping trolley 7 to break the wheel clamping trolley 7, and the train is braked and stopped after a fault is found.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.