Rotary support device for realizing quick reversing of track vehicle

Abstract

The utility model provides a kind of realizes the rotation support device of railcar driving direction quick reversing, and the fixed seat assembly is rotatably connected by rotary support with the anti-skid support seat above it, and the lifting device installed on the upper end surface of fixed seat assembly is connected with support assembly, and anti-skid support seat is driven by lifting device and moves up and down, realizes that anti-skid support seat is separated from rail or anti-skid adaptation, the anti-rotation locking device of lower end with the detachable connection of anti-skid support seat in non-working state is rotatably installed on the support assembly.The utility model controls anti-skid support seat and moves down and steel rail anti-skid adaptation or moves up and is locked by anti-rotation locking device limit according to the reversing demand of railcar, realizes the direction reversing of railcar in limited space, solves the problem that railcar cannot reverse due to the special reversing track cannot be laid in limited space, improves operation efficiency, and guarantees operation stability and safety.

Description

Technical Field

[0001] This utility model belongs to the field of rail engineering vehicle technology, specifically relating to a slewing support device for realizing rapid reversal of the travel direction of a rail vehicle. Background Technology

[0002] In the field of railway construction and maintenance operations both domestically and internationally, track engineering vehicles are core equipment. Their functionality heavily relies on the various engineering tools carried on board, and the effective operation of these tools often requires the track engineering vehicle to adjust its direction within a specific work area. However, due to the structural characteristics of railway tracks, track engineering vehicles can typically only travel in a straight line along the track's extension. In work scenarios without dedicated turning tracks (such as turnout sections), it is difficult to adjust their direction. Especially in single-track railway maintenance, tunnel construction, or small work areas, due to limited space, it is impossible to lay dedicated turning tracks, making the need for track engineering vehicle direction adjustment a key issue restricting operational efficiency. Therefore, improvements are necessary to solve the aforementioned track vehicle direction adjustment problem. Utility Model Content

[0003] The technical problem solved by this utility model is to provide a slewing support device for quickly changing the direction of railcar travel. This device uses a slewing bearing to rotatably connect the anti-slip support seat and the fixed seat assembly under the frame, providing rotational support for changing the direction of railcar travel. A lifting device on the fixed seat assembly is connected to a support assembly at the bottom of the frame, providing conditions for raising and lowering the anti-slip support seat. The anti-slip support seat is controlled to move downwards to match the anti-slip properties of the rail or upwards according to the railcar's direction-changing requirements, and is locked and limited by an anti-rotation locking device. This enables the railcar to change direction within a limited space, solving the problem of railcars being unable to change direction due to the inability to lay dedicated steering tracks in limited spaces, improving operational efficiency, and ensuring operational stability and safety.

[0004] The technical solution adopted by this utility model is a slewing support device for realizing rapid reversal of the travel direction of a railcar. It includes a support assembly fixed to the bottom of the frame and an anti-slip support seat located below the frame. The anti-slip support seat is rotatably connected to the fixed seat assembly above it through a slewing bearing. A lifting device installed on the upper surface of the fixed seat assembly is connected to the support assembly and is driven by the lifting device to move the anti-slip support seat up and down, so as to realize the separation of the anti-slip support seat from the rail or the anti-slip adaptation. An anti-rotation locking device is rotatably installed on the support assembly, which is detachably connected to the anti-slip support seat in the non-working state.

[0005] Furthermore, the lifting device includes two symmetrically arranged bidirectional hydraulic cylinders, the upper end of which is fixedly connected to the support assembly, and the lower piston rod of which is connected to the fixed base assembly.

[0006] Furthermore, the fixed seat assembly includes an upper ring plate, a wear plate, and two upper seats with groove-shaped hollow structures symmetrically fixed to the upper ring plate. The upper ring plate is fixed to the upper end face of the outer ring of the slewing bearing, and the inner ring of the slewing bearing is fixedly connected to the anti-slip support seat. The piston rod of the lower end of the bidirectional hydraulic cylinder extends into the interior of the upper seat and is connected to the middle of the upper seat through a pin. Wear plates are fixed on the outer end face and inner side wall of the upper seat.

[0007] Furthermore, the support assembly includes a fixed seat and a limiting seat. Two fixed seats are fixed at the bottom of the frame, corresponding to the positions of the two bidirectional hydraulic cylinders in the lifting device. The upper end of the bidirectional hydraulic cylinder is adapted to be fixedly connected to the fixed seat. Four limiting seats are fixed on the bottom surface of the frame, and an L-shaped limiting plate is fixed on the inner side wall of the limiting seat. The two upper seats in the fixed seat assembly are located at their respective ends inside the limiting seats. The wear plates on the outer end face and inner side wall of the upper seats are in contact with the long side plate and short side plate of the L-shaped limiting plate, respectively.

[0008] Furthermore, the anti-slip support includes a lower ring plate, channel steel, and stop blocks. The lower ring plate is fixedly connected to the outer ring of the slewing bearing. Two channel steels perpendicular to the rail are symmetrically fixed to the bottom surface of the lower ring plate, and two stop blocks symmetrically fixed to the bottom surface of the channel steel are located on the inner side of the rail on the same side.

[0009] Furthermore, the anti-rotation locking device includes a hook and an operating rod. A mounting seat is fixed on the limiting seat in the support assembly, and the middle part of the hook is hinged to the mounting seat. The upper end of the hook is hinged to one end of the operating rod. The hook plate fixed on the lower ring plate in the anti-slip support seat is engaged with the lower end of the hook at the corresponding position in the non-working state of being suspended in the air. The hook and hook plate are separated by pulling the operating rod outward.

[0010] Furthermore, the bottom surface of the frame is provided with an axle box locking cylinder whose lower piston rod is connected to the outer side of the axle box end cover by a connecting pin. Before the lifting device drives the anti-slip support seat to move down, the axle box locking cylinder drives the axle box end cover to move up to lift the wheel set axle box.

[0011] Advantages of this utility model compared to the prior art: 1. This technical solution provides rotational support for changing the direction of travel of the railcar by setting a structure under the frame that uses a slewing bearing to rotatably connect the anti-slip support seat and the fixed seat assembly. In conjunction with the lifting device, the anti-slip support seat is driven to adapt to the anti-slip of the rail, so as to realize the change of the direction of travel of the railcar in the absence of a dedicated turning line. This solves the defect of the existing technology that the railcar is difficult to adjust its direction in the absence of a dedicated turning line, and improves the work efficiency. 2. This technical solution involves setting an anti-slip support seat on the bottom surface of the base, which is located on the inner side of the rail when it moves down and contacts the rail. This limits the lateral displacement of the railcar during the reversing process, avoids slippage, and ensures the safety of the turning process. 3. This technical solution provides a locking limit condition for the anti-slip support seat when it is not in operation by rotating and installing a hook at the lower end of the limit seat and connecting it to the hook plate on the anti-slip support seat. This improves the stability and safety of the railcar when the anti-slip support seat is not in operation and prevents it from rotating randomly. 4. This technical solution has a simple structure and reasonable design. It does not require modification of the original wheelset structure of the railcar and is compatible with existing railcars. The wear plate helps to reduce component wear, extend service life, and reduce maintenance costs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model when it is lowered and adapted to the rail; Figure 2 This is a schematic diagram of the locked state structure of this utility model when it is suspended in the air. Figure 3 This is a front view of the structure of this utility model; Figure 4 This is a left view of the structure of this utility model; Figure 5 This is a top view of the structure of this utility model; Figure 6 This is a front view of the vehicle frame structure at the location of the mounting bracket assembly of this utility model; Figure 7 This is a bottom view of the vehicle frame structure at the location of the mounting bracket assembly of this utility model; Figure 8 The left view of the vehicle frame structure at the location of the mounting bracket assembly of this utility model. Detailed Implementation

[0013] The following will be based on the embodiments of this utility model. Figure 1-8 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0014] It should be noted that, unless otherwise stated herein, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0015] In this document, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0016] A slewing support device that enables rapid reversal of the direction of travel of a railcar, such as... Figure 1-2 As shown, the system includes a support assembly fixed to the bottom of the frame 12 and an anti-slip support 7 located below the frame 12. The anti-slip support 7 is rotatably connected to the fixed seat assembly 4 above it via a slewing bearing 8. A lifting device installed on the upper surface of the fixed seat assembly 4 is connected to the support assembly and is driven by the lifting device to move the anti-slip support 7 up and down, thereby separating the anti-slip support 7 from the rail 2 or adapting it to anti-slip. An anti-rotation locking device is rotatably installed on the support assembly, with its lower end detachably connected to the anti-slip support 7 in the non-working state. At this time, the system... The structure is suspended at the bottom of the frame 12 and locked and limited by an anti-rotation locking device. In the above structure, by setting a structure below the frame 12 that uses a slewing bearing 8 to rotatably connect the anti-slip support seat 7 and the fixed seat assembly 4, rotational support conditions are provided for changing the direction of travel of the railcar. In conjunction with the lifting device, the anti-slip support seat 7 is driven to adapt to the anti-slip of the rail 2, so as to realize the change of the direction of travel of the railcar in the case of no dedicated turning line. This solves the defect of the railcar being difficult to adjust its direction in the case of no dedicated turning line in the prior art and improves the work efficiency. like Figure 1-5As shown, the specific structure of the lifting device is as follows: The lifting device includes two symmetrically arranged bidirectional hydraulic cylinders 1. The upper end of the bidirectional hydraulic cylinder 1 is fixedly connected to the support assembly, and the piston rod of the lower end of the bidirectional hydraulic cylinder 1 is connected to the fixed seat assembly 4 through a pin. Specifically, the fixed seat assembly 4 includes an upper ring plate 4-3, a wear plate 4-2, and two upper seats 4-1 with a groove-shaped hollow structure symmetrically fixed to the upper ring plate 4-3. The upper ring plate 4-3 is fixedly connected to the outer ring of the slewing bearing 8 through bolts, and the inner ring of the slewing bearing 8 is fixedly connected to the anti-slip support seat 7 through bolts. The piston rod of the lower end of the bidirectional hydraulic cylinder 1 extends into the interior of the upper seat 4-1 and is connected to the middle of the upper seat 4-1 through a pin. Wear plates 4-2 are fixed on the outer end face and inner side wall of the upper seat 4-1.

[0017] like Figure 6-8 As shown, the specific structure of the support assembly is as follows: The support assembly includes a fixed seat 5 and a limiting seat 9. Two fixed seats 5 are fixed at the bottom of the frame 12, corresponding to the positions of the two bidirectional hydraulic cylinders 1 in the lifting device. The bidirectional hydraulic cylinders 1 adapted to the fixed seats 5 at the upper end are fixedly connected to the fixed seats 5. Four limiting seats 9 are fixed on the bottom surface of the frame 12, and L-shaped limiting plates 9-1 are fixed on the inner sidewall of the limiting seats 9. The two upper seats 4-1 in the fixed seat assembly 4 are located at their respective ends inside the limiting seats 9. The wear plates 4-2 on the outer end face and inner sidewall of the upper seats 4-1 are in contact with the long side plate and short side plate of the L-shaped limiting plate 9-1, respectively. In the above structure, during the slewing support operation, the wear plates 4-2 on the outer end face and inner sidewall of the upper seats 4-1 are restricted within the L-shaped limiting plate 9-1 of the frame 12, which restricts the relative movement between the slewing support structure and the frame 12 and improves safety and reliability.

[0018] like Figure 3-5 As shown, the specific structure of the anti-slip support 7 is as follows: The anti-slip support 7 includes a lower ring plate 7-3, a channel steel 7-1, and a stop block 7-2. The lower ring plate 7-3 is fixedly connected to the outer ring of the slewing bearing 8. Two channel steels 7-1, which are perpendicular to the rail 2, are symmetrically fixed on the bottom surface of the lower ring plate 7-3. Two stop blocks 7-2, which are symmetrically fixed on the bottom surface of the channel steels 7-1, are located on the inner side of the rail 2 on the same side. The length of the channel steel 7-1 is greater than the rail gauge. When the piston of the bidirectional hydraulic cylinder 1 extends, the channel steel 7-1 at the bottom of the lower ring plate 7-3 presses on the rail 2, while the stop block 7-2 located on the inner side of the rail 2 restricts the side slip of this structure on the rail surface. In the above structure, by setting the anti-slip support 7 on the bottom surface of the base 7-1 and the stop block 7-2 located on the inner side of the rail 2 when it moves down to contact the rail 2, the lateral displacement of the railcar is restricted during the reversing process of the railcar, avoiding side slip and ensuring the safety of the turning process. like Figure 1-5As shown, the specific structure of the anti-rotation locking device is as follows: The anti-rotation locking device includes a hook 10 and an operating rod 11. A mounting base 13 is fixed on the limiting seat 9 in the support assembly, and the middle part of the hook 10 is hinged to the mounting base 13. The upper end of the hook 10 is hinged to one end of the operating rod 11. The hook plate 3 fixed on the lower ring plate 7-3 in the anti-slip support 7 is engaged with the lower end of the hook 10 in the corresponding position when it is suspended in the air and not working. The hook 10 and the hook plate 3 are separated by pulling the operating rod 11 outward. In the above structure, by rotating the hook 10, whose lower end is engaged with the hook plate 3 on the anti-slip support 7, on the limiting seat 9, a locking limit condition is provided for the anti-slip support 7 in the non-working state, which improves the stability and safety of the railcar operation when the anti-slip support 7 is not working and prevents it from rotating at will. like Figure 1-2 As shown, the bottom surface of the frame 12 is provided with an axle box locking cylinder 14, which is connected to the outer side of the axle box end cover 16 by a connecting pin 15. Before the lifting device drives the anti-slip support 7 to move down, the axle box locking cylinder 14 drives the axle box end cover 16 to move up to lift the wheel set axle box, thereby separating the wheel set 6 from the rail 2.

[0019] Each carriage has a set of rotating supports installed in the middle of its bottom for reversing.

[0020] This technical solution has a simple structure and reasonable design. It does not require modification of the original wheelset structure of the railcar and is compatible with existing railcars. The setting of wear plate 4-2 helps to reduce component wear, extend service life, and reduce maintenance costs. This slewing bearing device is suitable for use on single-track railways and single-end operated railcars. For single-end operated railcars, since the working tools at the front and rear ends are different, the direction must be adjusted to facilitate the use of the working tools.

[0021] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A slewing support device for realizing rapid reversal of the travel direction of a railcar, characterized in that: It includes a support assembly fixed to the bottom of the frame (12) and an anti-slip support seat (7) located below the frame (12). The anti-slip support seat (7) is rotatably connected to the fixed seat assembly (4) above it via a slewing bearing (8). A lifting device installed on the upper surface of the fixed seat assembly (4) is connected to the support assembly and is driven by the lifting device to move the anti-slip support seat (7) up and down, so as to separate the anti-slip support seat (7) from the rail (2) or adapt it to anti-slip. An anti-rotation locking device is rotatably installed on the support assembly and is detachably connected to the anti-slip support seat (7) in the non-working state.

2. The slewing support device for realizing rapid reversal of the travel direction of a railcar according to claim 1, characterized in that: The lifting device includes two symmetrically arranged bidirectional hydraulic cylinders (1). The upper end of the bidirectional hydraulic cylinder (1) is fixedly connected to the support assembly, and the piston rod at the lower end of the bidirectional hydraulic cylinder (1) is connected to the fixed seat assembly (4).

3. The slewing support device for realizing rapid reversal of the travel direction of a railcar according to claim 2, characterized in that: The fixed seat assembly (4) includes an upper ring plate (4-3), a wear plate (4-2), and two upper seats (4-1) with groove-shaped hollow structures symmetrically fixed on the upper ring plate (4-3). The upper ring plate (4-3) is fixed to the upper end face of the outer ring of the slewing bearing (8), and the inner ring of the slewing bearing (8) is fixedly connected to the anti-slip support seat (7). The piston rod of the lower end of the bidirectional oil cylinder (1) extends into the interior of the upper seat (4-1) and is connected to the middle part of the upper seat (4-1) through a pin. Wear plates (4-2) are fixed on the outer end face and inner side wall of the upper seat (4-1).

4. The slewing support device for realizing rapid reversal of the travel direction of a railcar according to claim 1, characterized in that: The support assembly includes a fixed seat (5) and a limiting seat (9). The bottom of the frame (12) is fixed with two fixed seats (5) corresponding to the positions of the two bidirectional hydraulic cylinders (1) in the lifting device. The upper end of the bidirectional hydraulic cylinder (1) adapted to the fixed seat (5) is fixedly connected to the fixed seat (5). The bottom surface of the frame (12) is fixed with four limiting seats (9). The inner side wall of the limiting seat (9) is fixed with an L-shaped limiting plate (9-1). The two upper seats (4-1) in the fixed seat assembly (4) are located at the inner side of the corresponding limiting seats (9). The wear plates (4-2) on the outer end face and inner side wall of the upper seat (4-1) are in contact with the long side plate and short side plate of the L-shaped limiting plate (9-1) respectively.

5. The slewing support device for realizing rapid reversal of the travel direction of a railcar according to claim 1, characterized in that: The anti-slip support seat (7) includes a lower ring plate (7-3), a channel steel (7-1), and a stop block (7-2). The lower ring plate (7-3) is fixedly connected to the outer ring of the slewing bearing (8). Two channel steels (7-1) are symmetrically fixed on the bottom surface of the lower ring plate (7-3) and are perpendicular to the rail (2). Two stop blocks (7-2) are symmetrically fixed on the bottom surface of the channel steel (7-1) and are located on the inner side of the rail (2) on the same side.

6. The slewing support device for realizing rapid reversal of the travel direction of a railcar according to claim 1, characterized in that: The anti-rotation locking device includes a hook (10) and an operating rod (11). The limit seat (9) in the support assembly is fixed with a mounting seat (13), and the middle part of the hook (10) is hinged to the mounting seat (13). The upper end of the hook (10) is hinged to one end of the operating rod (11). The hook plate (3) fixed on the lower ring plate (7-3) in the anti-slip support seat (7) is hooked to the lower end of the hook (10) in the corresponding position when it is in the non-working state of being suspended in the air. The hook (10) and the hook plate (3) are separated by pulling the operating rod (11) outward.

7. The slewing support device for realizing rapid reversal of the travel direction of a railcar according to claim 1, characterized in that: The bottom surface of the frame (12) is provided with an axle box locking cylinder (14) whose lower piston rod is connected to the outer side of the axle box end cover (16) by a connecting pin (15). Before the lifting device drives the anti-slip support seat (7) to move down, the axle box locking cylinder (14) drives the axle box end cover (16) to move up to lift the wheel axle box.

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