Rail transfer device based on railway bogie maintenance

Abstract

The utility model relates to the technical field of rail transit equipment, and particularly discloses a rail transfer device based on railway bogie overhaul, which adopts the structural design of a rotary table, lifts a bogie to perform rotary rail transfer, is suitable for use scenes of overhaul workshops, namely meets the rail transfer operation in indoor narrow environments, and improves the overhaul efficiency. A vehicle running track is separated from a maintenance track of the bogie, track transfer of the bogie does not depend on a lifting frame any more, and potential safety hazards of the head of a worker are reduced. The two groups of movable rails are fixedly arranged on the surface of the rotary table in parallel; the rotary power mechanism drives the rotary table to rotate; in the rotating process of the rotary table, the movable rail can be aligned with at least two sets of rails outside the rotary table.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transit equipment, in particular to a rail-changing device based on the overhaul of railway bogies. Background Technique

[0002] In railway transportation, the overhaul of transfer racks plays an important role in transportation safety. In the overhaul workshop, before the bogie is overhauled, it needs to be separated from the car body. The process is as follows: the vehicle is transferred to the maintenance track, the car body is lifted up, so that the car body is separated from the bogie, and then under the action of the transfer mechanism or manual work, the bogie is towed out. After the bogie is overhauled, the bogie is reset, and then after the car body and the bogie are combined, the vehicle is disengaged. During the process, the bogie is on the same track. If it needs to be transferred to other overhaul tracks or overhaul workstations, a crane needs to be used for operation. Therefore, on-site personnel need to always pay attention to the situation at high altitudes to avoid head injuries;

[0003] For the existing rail-changing mechanism on the track, since the existing rail-changing mechanism needs to gradually change the track at a small angle during rail change, that is, there is a long overlapping area between the two groups of tracks, the floor area of this work station will be greatly increased, which is not suitable for use in the maintenance workshop. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the existing defects, and provide a rail-changing device based on the overhaul of railway bogies. By adopting the structural design of a turntable, the bogie is lifted and rotated for rail change, which is suitable for the use scenario of the overhaul workshop, that is, it meets the rail-changing operation in a narrow indoor environment, separates the vehicle running track from the overhaul track of the bogie, and the rail change of the bogie no longer depends on the lifting crane, reducing the safety hazard of the staff's head, and can effectively solve the problems in the background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A rail-changing device based on the overhaul of railway bogies, including,

[0006] A turntable that rotates around a vertical axis;

[0007] Two groups of moving rails, which are arranged in parallel and fixed on the surface of the turntable;

[0008] A rotary power mechanism for driving the turntable to rotate;

[0009] During the rotation of the turntable, the moving rails can be aligned with no less than two groups of tracks outside the turntable.

[0010] As a preferred technical scheme of the utility model, it further includes,

[0011] A lifting power mechanism for driving the turntable to lift;

[0012] The guard rail is fixedly arranged at the end of the movable rail or at the end of the rail on the outside of the slewing platform that is to be aligned with the movable rail;

[0013] By adding a guard rail, an auxiliary track can be added at the fracture connection between the movable rail and the fixed rail on the outside of the slewing platform, preventing the wheels from derailing;

[0014] Since the length direction of the guard rail overlaps with both the movable rail and the fixed rail, the slewing platform is axially lifted and lowered by the lifting power mechanism, so that the guard rail is misaligned with the movable rail or the fixed rail in the vertical direction, and interference will not occur during the process of slewing and switching tracks.

[0015] As a preferred technical solution of the present utility model, the lifting power mechanism includes,

[0016] A supporting plate rotatably installed on the slewing platform through a thrust bearing;

[0017] A main telescopic cylinder for lifting the supporting plate;

[0018] The slewing power mechanism includes,

[0019] A straight gear ring fixedly arranged coaxially with the slewing platform;

[0020] A gear meshing with the straight gear ring, and the shaft end of the gear is connected with a driving motor;

[0021] During the meshing process of the gear and the straight gear ring, they can move relative to each other axially;

[0022] A thrust bearing is arranged between the supporting plate and the slewing platform, so that the resistance during their relative rotation is small. At the same time, the straight gear ring and the gear are meshed with each other. The gear and the driving motor are fixedly installed. The straight gear ring can rise and fall with the slewing platform. During the lifting process, the straight gear ring and the gear axially displace, but they are always in meshing rotation, and the power transmission will not be interrupted.

[0023] As a preferred technical solution of the present utility model, it further includes a stopping mechanism capable of preventing the wheels above the movable rail from rolling;

[0024] By adding a stopping mechanism, the bogie on the slewing platform can be limited, preventing the bogie from moving during the slewing of the slewing platform.

[0025] As a preferred technical solution of the present utility model, the stopping mechanism includes,

[0026] A stopping baffle, the bottom of which is hinged to the slewing platform, and when its pitching angle increases, the side surface can contact the wheel flange above the movable rail and prevent the wheel from advancing;

[0027] An angle adjustment mechanism for driving the pitching angle adjustment of the stopping baffle;

[0028] Under normal conditions, the stop baffle is in a horizontal state and will not affect the feeding of the wheel. When its pitching angle increases, its side can contact the position of the wheel rim to prevent the wheel from moving forward;

[0029] At the same time, two groups of stop baffles can be linked, that is, the inclination directions of the two groups of stop baffles are opposite, and the pitching angles are synchronously controlled, so that bidirectional limiting of the wheel can be achieved.

[0030] As a preferred technical solution of the present invention, the angle adjustment mechanism includes,

[0031] A chute arranged along the axis at the free end of the stop baffle;

[0032] A driving plate with a sliding shaft at its end. The sliding shaft is slidably installed in the chute, and a vertically arranged auxiliary telescopic cylinder is arranged between the driving plate and the rotary table.

[0033] The driving plate is pushed vertically up and down by the auxiliary telescopic cylinder. During the lifting process, the sliding shaft slides in the chute, driving the stop baffle to adjust the pitching angle.

[0034] Compared with the prior art, the present invention has at least the following beneficial effects:

[0035] 1. The rail-changing device based on the overhaul of railway bogies adopts a rotary rail-changing mechanism, that is, by using the rotary motion of the rotary table, the direction of the moving rail is changed to dock with the fixed rails in different directions, completing the rail-changing operation of the bogie on the rotary table. The overall occupied area is small, suitable for narrow indoor working environments such as maintenance workshops;

[0036] 2. At the same time, the rail-changing device is provided with guard rails to ensure that the bogie can run smoothly when passing through the connection gap between the moving rail and the fixed rail, without derailment. At the same time, the lifting power mechanism is used to drive the rotary table to lift, so that the rotary table will not interfere with the guard rail and the fixed rail or the moving rail during the rotation process;

[0037] 3. At the same time, a stop mechanism is integrated in the rotary table, which can limit the bogie on the rotary table to ensure that the bogie does not displace during the rotation of the rotary table. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic structural diagram of the present invention;

[0039] Figure 2 It is a sectional view of the present invention;

[0040] Figure 3 It is an enlarged view at A of the present invention;

[0041] Figure 4Schematic diagram of another embodiment of the present utility model.

[0042] In the figure: 1, turntable; 101, thrust bearing; 2, moving rail; 3, guard rail; 4, stopping mechanism; 401, stopping baffle; 4011, chute; 402, driving plate; 403, auxiliary telescopic cylinder; 5, rotary power mechanism; 501, spur gear ring; 502, gear; 6, lifting power mechanism; 601, main telescopic cylinder; 602, supporting plate; 7, fixed rail. Specific embodiments

[0043] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0044] Please refer to Figures 1 - 3 , the present utility model provides a technical solution: a rail-changing device for railway bogie maintenance, which adopts the structural design of a turntable to lift and rotate the bogie for rail changing, and is suitable for the use scenario of a maintenance workshop, that is, it meets the rail-changing operation in a narrow indoor environment, separates the vehicle running track from the bogie maintenance track, and the bogie rail change no longer depends on a hoist, reducing the safety hazard to the heads of staff. Specifically, it includes,

[0045] The turntable 1 rotates around the vertical axis; there are two groups of moving rails 2, which are arranged in parallel and fixed on the surface of the turntable 1; a rotary power mechanism 5 for driving the turntable 1 to rotate; during the rotation of the turntable 1, the moving rail 2 can be aligned with no less than two groups of tracks outside the turntable 1.

[0046] Taking the cross-shaped fixed rail 7 as an example, the turntable 1 is arranged at the intersection position, and the turntable 1 rotates 90° to change the aligned fixed rail 7, that is, to change the running track of the bogie; in actual maintenance, one of the directions is used as the vehicle running track, and the other direction is the bogie maintenance track. When the bogie of the vehicle to be maintained travels above the turntable 1, the vehicle frame is lifted, the bogie is separated, after the turntable 1 rotates 90°, the bogie moves along the maintenance track in the set direction, and from the opposite direction of the set direction, the maintained bogie moves onto the turntable 1. After the turntable 1 rotates 90° in the reverse direction, the vehicle frame is reset, the vehicle frame is combined with the bogie, and the vehicle frame and the bogie drive away along the running track, that is, the replacement of the vehicle bogie is completed, and the whole process is efficient and convenient.

[0047] Refer to Figure 1 , the rail-changing device for railway bogie maintenance further includes,

[0048] The lifting power mechanism 6 for driving the lifting of the slewing table 1; the guard rail 3, which is fixedly arranged at the end of the moving rail 2 or at the end of the rail outside the slewing table 1 that is to be aligned with the moving rail 2; by adding the guard rail 3, an auxiliary track can be added at the fracture connection between the moving rail 2 and the fixed rail 7 outside the slewing table 1 to prevent the wheels from derailing.

[0049] Since the length direction of the guard rail 3 overlaps with both the moving rail 2 and the fixed rail 7, therefore, the slewing table 1 is axially lifted by the lifting power mechanism 6, so that the guard rail 3 is misaligned with the moving rail 2 or the fixed rail 7 in the vertical direction, thus preventing interference during the slewing and switching of the track.

[0050] Refer to Figure 2 , the lifting power mechanism 6 includes,

[0051] The supporting plate 602 rotatably installed with the slewing table 1 through the thrust bearing 101; the main telescopic cylinder 601 for lifting the supporting plate 602.

[0052] The slewing power mechanism 5 includes,

[0053] The straight gear ring 501 fixedly arranged coaxially with the slewing table 1; the gear 502 meshing with the straight gear ring 501, and the shaft end of the gear 502 is connected with a driving motor; the gear 502 can move axially relative to the straight gear ring 501 during the meshing process.

[0054] A thrust bearing 101 is arranged between the supporting plate 602 and the slewing table 1, so that the resistance is small when the two rotate relative to each other. At the same time, the straight gear ring 501 and the gear 502 are meshed with each other. Among them, the gear 502 and the driving motor are fixedly installed, and the straight gear ring 501 can rise and fall with the slewing table 1. During the lifting process, the straight gear ring 501 and the gear 502 have an axial displacement, but the two are always in the meshing state and will not cause the interruption of power transmission.

[0055] Refer to Figure 1 and Figure 3 , it also includes a stopping mechanism 4 that can prevent the wheels above the moving rail 2 from rolling;

[0056] By adding the stopping mechanism 4, the bogie on the slewing table 1 can be limited, preventing the bogie from moving during the slewing of the slewing table 1.

[0057] The stopping mechanism 4 includes,

[0058] The stopping baffle 401, the bottom of which is hinged to the slewing table 1, and when its pitching angle increases, the side surface can contact the wheel flange above the moving rail 2 and prevent the wheel from moving forward; the angle adjustment mechanism for driving the pitching angle adjustment of the stopping baffle 401.

[0059] Under normal conditions, the stop baffle 401 is in a horizontal state and will not affect the feeding of the wheel. When its pitching angle increases, its side can contact the position of the wheel flange to prevent the wheel from advancing;

[0060] At the same time, two groups of stop baffles 401 can be linked, that is, the inclination directions of the two groups of stop baffles 401 are opposite, and the pitching angles are synchronously controlled, so as to realize the two-way limit of the wheel.

[0061] The angle adjustment mechanism includes,

[0062] A chute 4011 arranged along the axis at the free end of the stop baffle 401; a driving plate 402 with a sliding shaft at the end, the sliding shaft is slidably installed in the chute 4011, and an auxiliary telescopic cylinder 403 arranged vertically is provided between the driving plate 402 and the rotary table 1.

[0063] The auxiliary telescopic cylinder 403 is used to push the driving plate 402 to move vertically up and down. During the lifting process, the sliding shaft is driven to slide in the chute 4011, driving the stop baffle 401 to adjust the pitching angle.

[0064] During use:

[0065] Refer to Figure 1 , taking the relative fixed arrangement of the guard rail 3 and the fixed rail 7 as an example. Before the rotary table 1 rotates, the auxiliary telescopic cylinder 403 extends preferentially, driving the driving plate 402 to rise, adjusting the pitching angle of the stop baffle 401, so as to stop the bogie. Subsequently, under the action of the main telescopic cylinder 601, the rotary table 1 moves downward until the upper plane of the moving rail 2 is lower than the bottom surface of the guard rail 3, thus avoiding the interference of the guard rail 3 on the moving rail 2 during the rotation process. After rotating 90°, the rotary table 1 rises to its original height, and the driving plate 402 descends, releasing the stop of the bogie, so that the bogie can travel along the newly aligned fixed rail 7.

[0066] Refer to Figure 4 , taking the relative fixed arrangement of the guard rail 3 and the moving rail 2 as an example. Before the rotary table 1 rotates, the auxiliary telescopic cylinder 403 extends preferentially, driving the driving plate 402 to rise, adjusting the pitching angle of the stop baffle 401, so as to stop the bogie. Subsequently, under the action of the main telescopic cylinder 601, the rotary table 1 moves upward until the bottom surface of the guard rail 3 is higher than the top surface of the fixed rail 7, thus avoiding the interference of the fixed rail 7 on the guard rail 3 during the rotation process. After rotating 90°, the rotary table 1 descends to its original height, and the driving plate 402 descends, releasing the stop of the bogie, so that the bogie can travel along the newly aligned fixed rail 7.

[0067] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A track changing device based on railway bogie maintenance, characterized in that: include, A turntable (1) rotates around a vertical axis; Two sets of movable rails (2) are arranged in parallel and fixed on the surface of the turntable (1); A rotary power mechanism (5) for driving the rotary table (1) to rotate; During the rotation of the turntable (1), the movable rail (2) can be aligned with at least two sets of rails outside the turntable (1); A lifting power mechanism (6) for driving the turntable (1) to rise and fall; A guard rail (3) fixedly arranged at an end of the moving rail (2), or at an end of a rail outside the turntable (1) to be aligned with the moving rail (2); A stopping mechanism (4) capable of preventing the wheels above the moving rail (2) from rolling; The stopping mechanism (4) comprises: A stop baffle (401) whose bottom is hinged to the turntable (1), and when its pitch angle increases, its side surface can contact the wheel rim above the moving rail (2) and prevent the wheel from moving forward; An angle adjustment mechanism for driving the stop baffle (401) to adjust the pitch angle.

2. The track changing device based on railway bogie maintenance according to claim 1 is characterized in that: The lifting power mechanism (6) comprises: A support plate (602) rotatably mounted on the turntable (1) via a thrust bearing (101); A main telescopic cylinder (601) for lifting and lowering the supporting plate (602); The rotary power mechanism (5) comprises: A spur gear ring (501) coaxially fixedly arranged with the rotary table (1); A gear (502) meshing with the spur gear ring (501), wherein a drive motor is connected to a shaft end of the gear (502); The gear (502) and the spur gear ring (501) are capable of relative movement in the axial direction during the meshing process.

3. The track changing device based on railway bogie maintenance according to claim 1 is characterized in that: The angle adjustment mechanism comprises: A slide groove (4011) is arranged along the axis at the free end of the stop baffle (401); A driving plate (402) having a sliding shaft is arranged at the end thereof, the sliding shaft being slidably mounted in a sliding groove (4011), and a vertically arranged auxiliary telescopic cylinder (403) is arranged between the driving plate (402) and the turntable (1).

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